Add log messages to error events w/o log message, primaryly error level

- "log spam" to be controlled via loglevel flag on startup

internal/repository/query.go

@@ -51,12 +51,14 @@ func (r *JobRepository) QueryJobs(
 
 	sql, args, err := query.ToSql()
 	if err != nil {
+		log.Error("Error while converting query to sql")
 		return nil, err
 	}
 
 	log.Debugf("SQL query: `%s`, args: %#v", sql, args)
 	rows, err := query.RunWith(r.stmtCache).Query()
 	if err != nil {
+		log.Error("Error while running query")
 		return nil, err
 	}
 
@@ -65,6 +67,7 @@ func (r *JobRepository) QueryJobs(
 		job, err := scanJob(rows)
 		if err != nil {
 			rows.Close()
+			log.Error("Error while scanning rows")
 			return nil, err
 		}
 		jobs = append(jobs, job)