fix ErrorOnlyArchiver logging Error, also when there is none

ErrorOnlyArchiver.go

@@ -9,10 +9,12 @@ func NewErrorOnlyArchiver(conf *Config) func(string, error) {
 	return func(filePath string, archiveErr error) {
 		if archiveErr != nil {
 			err := writeErrorFile(conf, filePath, archiveErr)
+			if err != nil {
 				logger.Error(err)
 			}
 		}
 	}
+}
 
 func writeErrorFile(conf *Config, filePath string, archiveErr error) error {
 	if archiveErr != nil {