diff --git a/backend/README.md b/backend/README.md
index 1441319b9..e65205d67 100644
--- a/backend/README.md
+++ b/backend/README.md
@@ -17,6 +17,6 @@ sudo npm install -g ts-node nodemon
 > Note: You can find your npm global binary folder using `npm -g bin`, where nodemon will be installed.
 
 ```
-nodemon src/index.ts --ignore cache/
+nodemon src/index.ts --ignore cache/ --ignore pools.json
 ```
 
diff --git a/backend/src/api/blocks.ts b/backend/src/api/blocks.ts
index eda348ad8..aac74584b 100644
--- a/backend/src/api/blocks.ts
+++ b/backend/src/api/blocks.ts
@@ -41,7 +41,7 @@ class Blocks {
    * @param onlyCoinbase - Set to true if you only need the coinbase transaction
    * @returns Promise<TransactionExtended[]>
    */
-  private async $getTransactionsExtended(blockHash: string, blockHeight: number, onlyCoinbase: boolean) : Promise<TransactionExtended[]> {
+  private async $getTransactionsExtended(blockHash: string, blockHeight: number, onlyCoinbase: boolean): Promise<TransactionExtended[]> {
     const transactions: TransactionExtended[] = [];
     const txIds: string[] = await bitcoinApi.$getTxIdsForBlock(blockHash);
 
@@ -94,7 +94,7 @@ class Blocks {
    * @param transactions
    * @returns BlockExtended
    */
-  private getBlockExtended(block: IEsploraApi.Block, transactions: TransactionExtended[]) : BlockExtended {
+  private getBlockExtended(block: IEsploraApi.Block, transactions: TransactionExtended[]): BlockExtended {
     const blockExtended: BlockExtended = Object.assign({}, block);
     blockExtended.reward = transactions[0].vout.reduce((acc, curr) => acc + curr.value, 0);
     blockExtended.coinbaseTx = transactionUtils.stripCoinbaseTransaction(transactions[0]);
@@ -113,7 +113,7 @@ class Blocks {
    * @param txMinerInfo
    * @returns
    */
-  private async $findBlockMiner(txMinerInfo: TransactionMinerInfo | undefined) : Promise<PoolTag> {
+  private async $findBlockMiner(txMinerInfo: TransactionMinerInfo | undefined): Promise<PoolTag> {
     if (txMinerInfo === undefined) {
       return await poolsRepository.$getUnknownPool();
     }
@@ -124,15 +124,15 @@ class Blocks {
     const pools: PoolTag[] = await poolsRepository.$getPools();
     for (let i = 0; i < pools.length; ++i) {
       if (address !== undefined) {
-        let addresses: string[] = JSON.parse(pools[i].addresses);
+        const addresses: string[] = JSON.parse(pools[i].addresses);
         if (addresses.indexOf(address) !== -1) {
           return pools[i];
         }
       }
 
-      let regexes: string[] = JSON.parse(pools[i].regexes);
+      const regexes: string[] = JSON.parse(pools[i].regexes);
       for (let y = 0; y < regexes.length; ++y) {
-        let match = asciiScriptSig.match(regexes[y]);
+        const match = asciiScriptSig.match(regexes[y]);
         if (match !== null) {
           return pools[i];
         }
diff --git a/backend/src/api/database-migration.ts b/backend/src/api/database-migration.ts
index c08b36ce1..50aa3a7f6 100644
--- a/backend/src/api/database-migration.ts
+++ b/backend/src/api/database-migration.ts
@@ -87,6 +87,7 @@ class DatabaseMigration {
         await this.$executeQuery(connection, this.getCreatePoolsTableQuery(), await this.$checkIfTableExists('pools'));
       }
       if (databaseSchemaVersion < 4) {
+        await this.$executeQuery(connection, 'DROP table blocks;');
         await this.$executeQuery(connection, this.getCreateBlocksTableQuery(), await this.$checkIfTableExists('blocks'));
       }
       connection.release();
diff --git a/backend/src/repositories/BlocksRepository.ts b/backend/src/repositories/BlocksRepository.ts
index 9ae41f536..8d36d8410 100644
--- a/backend/src/repositories/BlocksRepository.ts
+++ b/backend/src/repositories/BlocksRepository.ts
@@ -38,7 +38,7 @@ class BlocksRepository {
 
       await connection.query(query, params);
     } catch (e) {
-      logger.err('$updateBlocksDatabase() error' + (e instanceof Error ? e.message : e));
+      logger.err('$saveBlockInDatabase() error' + (e instanceof Error ? e.message : e));
     }
 
     connection.release();
diff --git a/backend/src/repositories/PoolsRepository.ts b/backend/src/repositories/PoolsRepository.ts
index b2a61dc19..060418bf8 100644
--- a/backend/src/repositories/PoolsRepository.ts
+++ b/backend/src/repositories/PoolsRepository.ts
@@ -1,5 +1,5 @@
-import { DB } from "../database";
-import { PoolInfo, PoolTag } from "../mempool.interfaces"
+import { DB } from '../database';
+import { PoolInfo, PoolTag } from '../mempool.interfaces';
 
 class PoolsRepository {
   /**
@@ -7,7 +7,7 @@ class PoolsRepository {
    */
   public async $getPools(): Promise<PoolTag[]> {
     const connection = await DB.pool.getConnection();
-    const [rows] = await connection.query("SELECT * FROM pools;");
+    const [rows] = await connection.query('SELECT * FROM pools;');
     connection.release();
     return <PoolTag[]>rows;
   }
@@ -17,7 +17,7 @@ class PoolsRepository {
    */
   public async $getUnknownPool(): Promise<PoolTag> {
     const connection = await DB.pool.getConnection();
-    const [rows] = await connection.query("SELECT * FROM pools where name = 'Unknown'");
+    const [rows] = await connection.query('SELECT * FROM pools where name = "Unknown"');
     connection.release();
     return <PoolTag>rows[0];
   }
@@ -25,7 +25,7 @@ class PoolsRepository {
   /**
    * Get basic pool info and block count
    */
-  public async $getPoolsInfo(interval: string = "100 YEARS"): Promise<PoolInfo[]> {
+  public async $getPoolsInfo(interval: string = '100 YEARS'): Promise<PoolInfo[]> {
     const connection = await DB.pool.getConnection();
     const [rows] = await connection.query(`
       SELECT COUNT(height) as blockCount, pool_id as poolId, pools.name as name, pools.link as link
@@ -40,4 +40,4 @@ class PoolsRepository {
   }
 }
 
-export default new PoolsRepository();
\ No newline at end of file
+export default new PoolsRepository();