diff --git a/src/ORM/client/client.service.ts b/src/ORM/client/client.service.ts
index 318d95b..3829839 100644
--- a/src/ORM/client/client.service.ts
+++ b/src/ORM/client/client.service.ts
@@ -21,6 +21,17 @@ export class ClientService {
         return await this.clientRepository.save(client);
     }
 
+    public async insert(partialClient: Partial<ClientEntity>): Promise<ClientEntity> {
+        const insertResult = await this.clientRepository.insert(partialClient);
+
+        const client = {
+            ...partialClient,
+            ...insertResult.generatedMaps[0]
+        };
+
+        return client as ClientEntity;
+    }
+
     public async delete(sessionId: string) {
         return await this.clientRepository.softDelete({ sessionId });
     }
@@ -87,4 +98,5 @@ export class ClientService {
             .getRawMany();
         return result;
     }
+
 }
\ No newline at end of file
diff --git a/src/app.module.ts b/src/app.module.ts
index 70067c5..0a220c7 100644
--- a/src/app.module.ts
+++ b/src/app.module.ts
@@ -40,7 +40,7 @@ const ORMModules = [
             cache: true,
             logging: false,
             enableWAL: true,
-            busyTimeout: 60 * 1000
+            busyErrorRetry: 60 * 1000
         }),
         CacheModule.register(),
         ScheduleModule.forRoot(),
diff --git a/src/models/StratumV1Client.ts b/src/models/StratumV1Client.ts
index 83b77c5..afe2ea6 100644
--- a/src/models/StratumV1Client.ts
+++ b/src/models/StratumV1Client.ts
@@ -280,12 +280,13 @@ export class StratumV1Client extends EasyUnsubscribe {
 
 
 
-            this.entity = await this.clientService.save({
+            this.entity = await this.clientService.insert({
                 sessionId: this.extraNonceAndSessionId,
                 address: this.clientAuthorization.address,
                 clientName: this.clientAuthorization.worker,
                 userAgent: this.clientSubscription.userAgent,
                 startTime: new Date(),
+                bestDifficulty: 0
             });
 
             this.stratumV1JobsService.newMiningJob$.pipe(