diff --git a/server/src/main/kotlin/ir/armor/tachidesk/impl/backup/legacy/LegacyBackupImport.kt b/server/src/main/kotlin/ir/armor/tachidesk/impl/backup/legacy/LegacyBackupImport.kt
index a07ad3a0..830e1a40 100644
--- a/server/src/main/kotlin/ir/armor/tachidesk/impl/backup/legacy/LegacyBackupImport.kt
+++ b/server/src/main/kotlin/ir/armor/tachidesk/impl/backup/legacy/LegacyBackupImport.kt
@@ -64,11 +64,7 @@ object LegacyBackupImport : LegacyBackupBase() {
         logger.info {
             """
                 Restore Errors:
-                ${
-            errors.map {
-                "${it.first} - ${it.second}"
-            }.joinToString("\n")
-            }
+                ${ errors.joinToString("\n") { "${it.first} - ${it.second}" } }
                 Restore Summary:
                 - Missing Sources:
                 ${validationResult.missingSources.joinToString("\n")}
@@ -119,6 +115,8 @@ object LegacyBackupImport : LegacyBackupBase() {
             getHttpSource(manga.source)
         } catch (e: NullPointerException) {
             null
+        } catch (e: NoSuchElementException) {
+            null
         }
         val sourceName = sourceMapping[manga.source] ?: manga.source.toString()