diff --git a/webapp/packages/core-sdk/src/CustomGraphQLClient.ts b/webapp/packages/core-sdk/src/CustomGraphQLClient.ts
index cbdbfb616db..47063f6b2d1 100644
--- a/webapp/packages/core-sdk/src/CustomGraphQLClient.ts
+++ b/webapp/packages/core-sdk/src/CustomGraphQLClient.ts
@@ -6,20 +6,20 @@
  * you may not use this file except in compliance with the License.
  */
 
-import { GraphQLClient } from 'graphql-request';
-import { ClientError } from 'graphql-request';
+import { GraphQLClient, ClientError } from 'graphql-request';
 import type { Variables } from 'graphql-request/dist/types';
 import type * as Dom from 'graphql-request/dist/types.dom';
 
 import { GQLError } from './GQLError';
 import type { IResponseInterceptor } from './IResponseInterceptor';
+import { PlainGQLError } from './PlainGQLError';
 
 export class CustomGraphQLClient extends GraphQLClient {
   get blockReason(): Error | string | null {
     return this.requestsBlockedReason;
   }
 
-  private interceptors: IResponseInterceptor[] = [];
+  private readonly interceptors: IResponseInterceptor[] = [];
   private isRequestsBlocked = false;
   private requestsBlockedReason: Error | string | null = null;
 
@@ -27,7 +27,7 @@ export class CustomGraphQLClient extends GraphQLClient {
     this.interceptors.push(interceptor);
   }
 
-  request<T extends any, V = Variables>(
+  request<T, V = Variables>(
     query: string,
     variables?: V,
     requestHeaders?: Dom.RequestInit['headers']
@@ -67,8 +67,13 @@ export class CustomGraphQLClient extends GraphQLClient {
       return response.data as T;
     } catch (error) {
       if (isClientError(error)) {
-        throw new GQLError(error);
+        if (isObjectError(error)) {
+          throw new GQLError(error);
+        } else {
+          throw new PlainGQLError(error);
+        }
       }
+
       throw error;
     }
   }
@@ -78,3 +83,7 @@ function isClientError(obj: any): obj is ClientError {
   // in es5 build `instanceof ClientError` always false, so we try to determine by checking response property
   return obj instanceof ClientError || obj.response;
 }
+
+function isObjectError(obj: ClientError) {
+  return obj.response.data !== undefined && !!obj.response.errors;
+}
diff --git a/webapp/packages/core-sdk/src/PlainGQLError.ts b/webapp/packages/core-sdk/src/PlainGQLError.ts
new file mode 100644
index 00000000000..0031e185b2b
--- /dev/null
+++ b/webapp/packages/core-sdk/src/PlainGQLError.ts
@@ -0,0 +1,35 @@
+/*
+ * CloudBeaver - Cloud Database Manager
+ * Copyright (C) 2020-2022 DBeaver Corp and others
+ *
+ * Licensed under the Apache License, Version 2.0.
+ * you may not use this file except in compliance with the License.
+ */
+
+import type { ClientError } from 'graphql-request';
+import type { GraphQLRequestContext, GraphQLResponse } from 'graphql-request/dist/types';
+
+import { getTextBetween } from '@cloudbeaver/core-utils';
+
+import { DetailsError } from './DetailsError';
+
+export class PlainGQLError extends DetailsError {
+  response: GraphQLResponse;
+  request: GraphQLRequestContext;
+  constructor(clientError: ClientError) {
+    let message = clientError.message;
+
+    if (typeof clientError.response.error === 'string') {
+      message = getTextBetween(clientError.response.error, '<title>', '</title>');
+    }
+
+    super(message);
+    this.name = 'GQL Error';
+    this.response = clientError.response;
+    this.request = clientError.request;
+  }
+
+  hasDetails(): boolean {
+    return false;
+  }
+}
\ No newline at end of file
diff --git a/webapp/packages/core-utils/src/getTextBetween.ts b/webapp/packages/core-utils/src/getTextBetween.ts
new file mode 100644
index 00000000000..1dec86be1e9
--- /dev/null
+++ b/webapp/packages/core-utils/src/getTextBetween.ts
@@ -0,0 +1,15 @@
+/*
+ * CloudBeaver - Cloud Database Manager
+ * Copyright (C) 2020-2022 DBeaver Corp and others
+ *
+ * Licensed under the Apache License, Version 2.0.
+ * you may not use this file except in compliance with the License.
+ */
+
+export function getTextBetween(target: string, left: string, right: string) {
+  if (!target.includes(left) || !target.includes(right)) {
+    return target;
+  }
+
+  return target.slice(target.indexOf(left) + left.length, target.lastIndexOf(right));
+}
diff --git a/webapp/packages/core-utils/src/index.ts b/webapp/packages/core-utils/src/index.ts
index 6e080049207..dc77dcf8ee1 100644
--- a/webapp/packages/core-utils/src/index.ts
+++ b/webapp/packages/core-utils/src/index.ts
@@ -30,3 +30,4 @@ export * from './isMapsEqual';
 export * from './openCenteredPopup';
 export * from './download';
 export * from './getTextFileReadingProcess';
+export * from './getTextBetween';