diff --git a/backend/src/api/mining.ts b/backend/src/api/mining.ts
index cbd412068..81821b6f7 100644
--- a/backend/src/api/mining.ts
+++ b/backend/src/api/mining.ts
@@ -7,6 +7,7 @@ import logger from '../logger';
 import blocks from './blocks';
 import { Common } from './common';
 import loadingIndicators from './loading-indicators';
+import { escape } from 'mysql2';
 
 class Mining {
   hashrateIndexingStarted = false;
@@ -110,7 +111,7 @@ class Mining {
   public async $getPoolStat(slug: string): Promise<object> {
     const pool = await PoolsRepository.$getPool(slug);
     if (!pool) {
-      throw new Error(`This mining pool does not exist`);
+      throw new Error('This mining pool does not exist ' + escape(slug));
     }
 
     const blockCount: number = await BlocksRepository.$blockCount(pool.id);
diff --git a/backend/src/repositories/BlocksRepository.ts b/backend/src/repositories/BlocksRepository.ts
index 47a18fc9b..a34f32e83 100644
--- a/backend/src/repositories/BlocksRepository.ts
+++ b/backend/src/repositories/BlocksRepository.ts
@@ -5,6 +5,7 @@ import { Common } from '../api/common';
 import { prepareBlock } from '../utils/blocks-utils';
 import PoolsRepository from './PoolsRepository';
 import HashratesRepository from './HashratesRepository';
+import { escape } from 'mysql2';
 
 class BlocksRepository {
   /**
@@ -235,7 +236,7 @@ class BlocksRepository {
   public async $getBlocksByPool(slug: string, startHeight?: number): Promise<object[]> {
     const pool = await PoolsRepository.$getPool(slug);
     if (!pool) {
-      throw new Error(`This mining pool does not exist`);
+      throw new Error('This mining pool does not exist ' + escape(slug));
     }
 
     const params: any[] = [];
diff --git a/backend/src/repositories/HashratesRepository.ts b/backend/src/repositories/HashratesRepository.ts
index 661535aa3..531b6cdcf 100644
--- a/backend/src/repositories/HashratesRepository.ts
+++ b/backend/src/repositories/HashratesRepository.ts
@@ -1,3 +1,4 @@
+import { escape } from 'mysql2';
 import { Common } from '../api/common';
 import DB from '../database';
 import logger from '../logger';
@@ -105,7 +106,7 @@ class HashratesRepository {
   public async $getPoolWeeklyHashrate(slug: string): Promise<any[]> {
     const pool = await PoolsRepository.$getPool(slug);
     if (!pool) {
-      throw new Error(`This mining pool does not exist`);
+      throw new Error('This mining pool does not exist ' + escape(slug));
     }
 
     // Find hashrate boundaries
diff --git a/backend/src/repositories/PoolsRepository.ts b/backend/src/repositories/PoolsRepository.ts
index 037a6250a..c7cc6cba3 100644
--- a/backend/src/repositories/PoolsRepository.ts
+++ b/backend/src/repositories/PoolsRepository.ts
@@ -78,7 +78,6 @@ class PoolsRepository {
       const [rows]: any[] = await DB.query(query, [slug]);
 
       if (rows.length < 1) {
-        logger.debug(`This slug does not match any known pool`);
         return null;
       }