Initial analysis - found multiple bugs in Go code via linter

Co-authored-by: fiftin <[email protected]>

Author: Copilot

go.mod

@@ -17,7 +17,6 @@ require (
 	github.com/gorilla/websocket v1.5.3
 	github.com/lib/pq v1.10.9
 	github.com/mdp/qrterminal/v3 v3.2.1
-	github.com/pkg/errors v0.9.1
 	github.com/pquerna/otp v1.4.0
 	github.com/robfig/cron/v3 v3.0.1
 	github.com/semaphoreui/semaphore/pro v0.0.0