From 0a6de2b3eab9f375a4021b10a1ff79a570fc9ed1 Mon Sep 17 00:00:00 2001
From: arkon <eugcheung94@gmail.com>
Date: Sat, 2 May 2020 10:24:37 -0400
Subject: [PATCH] Fix backup failing when source isn't installed

---
 .../main/java/eu/kanade/tachiyomi/data/backup/BackupManager.kt  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupManager.kt b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupManager.kt
index eb702d6de4..f90a91832d 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupManager.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupManager.kt
@@ -131,7 +131,7 @@ class BackupManager(val context: Context, version: Int = CURRENT_VERSION) {
                 mangaEntries.add(backupMangaObject(manga, flags))
 
                 // Maintain set of extensions/sources used (excludes local source)
-                if (manga.source != 0L) {
+                if (manga.source != 0L && sourceManager.get(manga.source) != null) {
                     extensions.add("${manga.source}:${sourceManager.get(manga.source)!!.name}")
                 }
             }