diff --git a/src/services/api.ts b/src/services/api.ts
index 372ff94d4..84a8a87c3 100644
--- a/src/services/api.ts
+++ b/src/services/api.ts
@@ -558,7 +558,7 @@ export class YdbEmbeddedAPI extends AxiosWrapper {
         const {schema, ...rest} = params;
 
         // FIXME: base64 is passed both to params and body to work on versions before and after 24-3
-        return this.post<QueryAPIResponse<Action, Schema> | ErrorResponse>(
+        return this.post<QueryAPIResponse<Action, Schema> | ErrorResponse | null>(
             this.getPath('/viewer/json/query'),
             {...rest, base64},
             {schema, base64},
diff --git a/src/store/reducers/cluster/utils.ts b/src/store/reducers/cluster/utils.ts
index d2fd4cd9e..c0e54c5dd 100644
--- a/src/store/reducers/cluster/utils.ts
+++ b/src/store/reducers/cluster/utils.ts
@@ -86,7 +86,7 @@ function getGroupStats(data?: KeyValueRow[] | TStorageStats[]) {
 }
 
 export const parseGroupsStatsQueryResponse = (
-    data: ExecuteQueryResponse<'modern'>,
+    data: ExecuteQueryResponse<'modern'> | null,
 ): ClusterGroupsStats => {
     const parsedData = parseQueryAPIExecuteResponse(data).result;
     return getGroupStats(parsedData);
diff --git a/src/store/reducers/executeQuery.ts b/src/store/reducers/executeQuery.ts
index b73d611f5..1810324bb 100644
--- a/src/store/reducers/executeQuery.ts
+++ b/src/store/reducers/executeQuery.ts
@@ -258,7 +258,7 @@ export const executeQueryApi = api.injectEndpoints({
                     }
 
                     const data = parseQueryAPIExecuteResponse(response);
-                    data.traceId = response._meta?.traceId;
+                    data.traceId = response?._meta?.traceId;
 
                     const queryStats: QueryStats = {};
                     if (data.stats) {
diff --git a/src/store/reducers/explainQuery/utils.ts b/src/store/reducers/explainQuery/utils.ts
index fd53f5cad..0bfc999c6 100644
--- a/src/store/reducers/explainQuery/utils.ts
+++ b/src/store/reducers/explainQuery/utils.ts
@@ -13,7 +13,7 @@ export const explainVersions = {
 const supportedExplainQueryVersions = Object.values(explainVersions);
 
 export const prepareExplainResponse = (
-    response: ExplainScriptResponse | ExplainQueryResponse,
+    response: ExplainScriptResponse | ExplainQueryResponse | null,
 ): PreparedExplainResponse => {
     const {plan: rawPlan, ast} = parseQueryAPIExplainResponse(response);
 
diff --git a/src/store/reducers/viewSchema/viewSchema.ts b/src/store/reducers/viewSchema/viewSchema.ts
index c17a6b5fa..a888fd2ef 100644
--- a/src/store/reducers/viewSchema/viewSchema.ts
+++ b/src/store/reducers/viewSchema/viewSchema.ts
@@ -24,7 +24,7 @@ export const viewSchemaApi = api.injectEndpoints({
                         return {error: response};
                     }
 
-                    return {data: response.columns || []};
+                    return {data: response?.columns || []};
                 } catch (error) {
                     return {error: error};
                 }