diff --git a/AdminPanel/client/package-lock.json b/AdminPanel/client/package-lock.json
index 1ba9d979..23bd1d35 100644
--- a/AdminPanel/client/package-lock.json
+++ b/AdminPanel/client/package-lock.json
@@ -1,5 +1,5 @@
 {
-  "name": "docscloud",
+  "name": "onlyoffice-adminpanel-client",
   "version": "1.3.0",
   "lockfileVersion": 1,
   "requires": true,
@@ -1901,6 +1901,11 @@
         "require-from-string": "^2.0.2"
       }
     },
+    "ajv-errors": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/ajv-errors/-/ajv-errors-3.0.0.tgz",
+      "integrity": "sha512-V3wD15YHfHz6y0KdhYFjyy9vWtEVALT9UrxfN3zqlI6dMioHnJrqOYfyPKol3oqrnCM9uwkcdCwkJ0WUcbLMTQ=="
+    },
     "ajv-formats": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/ajv-formats/-/ajv-formats-3.0.1.tgz",
diff --git a/AdminPanel/client/package.json b/AdminPanel/client/package.json
index 7884270b..c3d74460 100644
--- a/AdminPanel/client/package.json
+++ b/AdminPanel/client/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "docscloud",
+  "name": "onlyoffice-adminpanel-client",
   "version": "1.3.0",
   "private": true,
   "scripts": {
@@ -10,6 +10,7 @@
     "@reduxjs/toolkit": "^2.8.2",
     "@tanstack/react-query": "^5.83.0",
     "ajv": "^8.17.1",
+    "ajv-errors": "^3.0.0",
     "ajv-formats": "^3.0.1",
     "axios": "1.7.4",
     "prop-types": "^15.8.1",
diff --git a/AdminPanel/client/src/hooks/useFieldValidation.js b/AdminPanel/client/src/hooks/useFieldValidation.js
index abc70c87..9bbbbdc3 100644
--- a/AdminPanel/client/src/hooks/useFieldValidation.js
+++ b/AdminPanel/client/src/hooks/useFieldValidation.js
@@ -2,6 +2,7 @@ import {useState, useEffect, useCallback} from 'react';
 import {useSelector} from 'react-redux';
 import Ajv from 'ajv';
 import addFormats from 'ajv-formats';
+import addErrors from 'ajv-errors';
 import {selectSchema, selectSchemaLoading, selectSchemaError} from '../store/slices/configSlice';
 
 /**
@@ -22,19 +23,7 @@ export const useFieldValidation = () => {
         // Build AJV validator with custom and standard formats
         const ajv = new Ajv({allErrors: true, strict: false});
         addFormats(ajv); // Add standard formats including email
-
-        // Register formats from schema $defs.formats (regex strings)
-        const formats = schema?.$defs?.formats;
-        if (formats && typeof formats === 'object') {
-          for (const [name, patternString] of Object.entries(formats)) {
-            try {
-              const re = new RegExp(patternString);
-              ajv.addFormat(name, re);
-            } catch (e) {
-              console.warn('Invalid format regex in schema $defs.formats:', name, e.message);
-            }
-          }
-        }
+        addErrors(ajv);
 
         const validateFn = ajv.compile(schema);
         setValidator(() => validateFn);
diff --git a/AdminPanel/server/package-lock.json b/AdminPanel/server/package-lock.json
index 954fe8e9..b68f896e 100644
--- a/AdminPanel/server/package-lock.json
+++ b/AdminPanel/server/package-lock.json
@@ -55,6 +55,11 @@
         "require-from-string": "^2.0.2"
       }
     },
+    "ajv-errors": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/ajv-errors/-/ajv-errors-3.0.0.tgz",
+      "integrity": "sha512-V3wD15YHfHz6y0KdhYFjyy9vWtEVALT9UrxfN3zqlI6dMioHnJrqOYfyPKol3oqrnCM9uwkcdCwkJ0WUcbLMTQ=="
+    },
     "ajv-formats": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/ajv-formats/-/ajv-formats-2.1.1.tgz",
diff --git a/AdminPanel/server/package.json b/AdminPanel/server/package.json
index 8aef1a5b..17424aa3 100644
--- a/AdminPanel/server/package.json
+++ b/AdminPanel/server/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "adminpanel",
+  "name": "onlyoffice-adminpanel-server",
   "version": "1.0.0",
   "homepage": "https://www.onlyoffice.com",
   "private": true,
@@ -19,6 +19,7 @@
     "express": "^4.19.2",
     "ajv": "^8.17.1",
     "ajv-formats": "^2.1.1",
+    "ajv-errors": "^3.0.0",
     "joi": "^17.13.3",
     "jsonwebtoken": "^9.0.2",
     "ms": "^2.1.3"
diff --git a/AdminPanel/server/sources/routes/adminpanel/router.js b/AdminPanel/server/sources/routes/adminpanel/router.js
index 53a6b19e..9acc3149 100644
--- a/AdminPanel/server/sources/routes/adminpanel/router.js
+++ b/AdminPanel/server/sources/routes/adminpanel/router.js
@@ -140,7 +140,9 @@ router.post('/setup', async (req, res) => {
 
     const passwordValidationResult = validatePassword(ctx, password);
     if (!passwordValidationResult.isValid) {
-      return res.status(400).json({error: 'Password is too weak'});
+      return res
+        .status(400)
+        .json({error: 'Password must me at least 8 characters long, contain at least one digit, one uppercase letter and one special character'});
     }
 
     await passwordManager.saveAdminPassword(ctx, password);
@@ -174,7 +176,9 @@ router.post('/change-password', requireAuth, async (req, res) => {
 
     const passwordValidationResult = validatePassword(ctx, newPassword);
     if (!passwordValidationResult.isValid) {
-      return res.status(400).json({error: 'Password is too weak'});
+      return res
+        .status(400)
+        .json({error: 'Password must me at least 8 characters long, contain at least one digit, one uppercase letter and one special character'});
     }
 
     if (currentPassword === newPassword) {
diff --git a/AdminPanel/server/sources/routes/config/config.service.js b/AdminPanel/server/sources/routes/config/config.service.js
index 1f15531a..ac90c459 100644
--- a/AdminPanel/server/sources/routes/config/config.service.js
+++ b/AdminPanel/server/sources/routes/config/config.service.js
@@ -33,6 +33,7 @@
 'use strict';
 const Ajv = require('ajv');
 const addFormats = require('ajv-formats');
+const addErrors = require('ajv-errors');
 const logger = require('../../../../../Common/sources/logger');
 const tenantManager = require('../../../../../Common/sources/tenantManager');
 const supersetSchema = require('../../../../../Common/config/schemas/config.schema.json');
@@ -48,14 +49,6 @@ const AJV_FILTER_CONFIG = {allErrors: true, strict: false, removeAdditional: tru
  */
 function registerAjvExtras(instance) {
   instance.addKeyword({keyword: X_SCOPE_KEYWORD, schemaType: ['string', 'array'], errors: false});
-
-  const formats = supersetSchema?.$defs?.formats;
-  if (formats && typeof formats === 'object') {
-    for (const [name, patternString] of Object.entries(formats)) {
-      const re = new RegExp(patternString);
-      instance.addFormat(name, re);
-    }
-  }
 }
 
 /**
@@ -66,6 +59,7 @@ function registerAjvExtras(instance) {
 function createAjvInstance(config) {
   const instance = new Ajv(config);
   addFormats(instance);
+  addErrors(instance);
   registerAjvExtras(instance);
   return instance;
 }
diff --git a/Common/config/schemas/config.schema.json b/Common/config/schemas/config.schema.json
index fea6d0bb..afdee7ae 100644
--- a/Common/config/schemas/config.schema.json
+++ b/Common/config/schemas/config.schema.json
@@ -6,12 +6,26 @@
   "type": "object",
   "additionalProperties": false,
   "$defs": {
-    "formats": {
-      "cron6": "^\\s*\\S+(?:\\s+\\S+){5}\\s*$",
-      "passlength": "^.{8,128}$",
-      "passdigit": ".*\\d.*",
-      "passupper": ".*[A-Z].*",
-      "passspecial": ".*[!@#$%^&*()_+\\-=\\[\\]{};':\"\\\\|,.<>\\/?].*"
+    "cron6": {
+      "type": "string",
+      "pattern": "^\\s*\\S+(?:\\s+\\S+){5}\\s*$",
+      "errorMessage": "Cron expression must have exactly 6 parts"
+    },
+    "passlength": {
+      "type": "string",
+      "pattern": "^.{8,128}$"
+    },
+    "passdigit": {
+      "type": "string",
+      "pattern": ".*\\d.*"
+    },
+    "passupper": {
+      "type": "string",
+      "pattern": ".*[A-Z].*"
+    },
+    "passspecial": {
+      "type": "string",
+      "pattern": ".*[!@#$%^&*()_+\\-=\\[\\]{};':\"\\\\|,.<>\\/?].*"
     }
   },
   "properties": {
@@ -88,8 +102,8 @@
               "additionalProperties": false,
               "x-scope": ["admin", "tenant"],
               "properties": {
-                "filesCron": {"type": "string", "format": "cron6", "x-scope": "admin"},
-                "documentsCron": {"type": "string", "format": "cron6", "x-scope": "admin"},
+                "filesCron": {"$ref": "#/$defs/cron6", "x-scope": "admin"},
+                "documentsCron": {"$ref": "#/$defs/cron6", "x-scope": "admin"},
                 "files": {"type": "integer", "minimum": 0, "x-scope": "admin"},
                 "filesremovedatonce": {"type": "integer", "minimum": 0, "x-scope": "admin"},
                 "sessionidle": {"type": "string", "x-scope": ["admin", "tenant"]},
@@ -415,26 +429,22 @@
           "description": "Password validation requirements using custom format types",
           "properties": {
             "minLength": {
-              "type": "string",
-              "format": "passlength",
+              "$ref": "#/$defs/passlength",
               "description": "be at least 8 characters long",
               "x-scope": ["admin", "tenant"]
             },
             "hasDigit": {
-              "type": "string",
-              "format": "passdigit",
+              "$ref": "#/$defs/passdigit",
               "description": "contain at least one digit",
               "x-scope": ["admin", "tenant"]
             },
             "hasUppercase": {
-              "type": "string",
-              "format": "passupper",
+              "$ref": "#/$defs/passupper",
               "description": "contain at least one uppercase letter",
               "x-scope": ["admin", "tenant"]
             },
             "hasSpecialChar": {
-              "type": "string",
-              "format": "passspecial",
+              "$ref": "#/$defs/passspecial",
               "description": "contain at least one special character",
               "x-scope": ["admin", "tenant"]
             }