diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/core/db/migrations/Migration20To21.kt b/app/src/main/kotlin/org/koitharu/kotatsu/core/db/migrations/Migration20To21.kt
new file mode 100644
index 000000000..462b77261
--- /dev/null
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/core/db/migrations/Migration20To21.kt
@@ -0,0 +1,12 @@
+package org.koitharu.kotatsu.core.db.migrations
+
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+class Migration20To21 : Migration(20, 21) {
+
+	override fun migrate(db: SupportSQLiteDatabase) {
+		db.execSQL("ALTER TABLE tracks ADD COLUMN `last_error` TEXT DEFAULT NULL")
+		db.execSQL("ALTER TABLE sources ADD COLUMN `added_in` INTEGER NOT NULL DEFAULT 0")
+	}
+}
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/tracker/data/TrackEntity.kt b/app/src/main/kotlin/org/koitharu/kotatsu/tracker/data/TrackEntity.kt
index c152253ac..127a60b4c 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/tracker/data/TrackEntity.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/tracker/data/TrackEntity.kt
@@ -25,6 +25,7 @@ class TrackEntity(
 	@ColumnInfo(name = "last_check_time") val lastCheckTime: Long,
 	@ColumnInfo(name = "last_chapter_date") val lastChapterDate: Long,
 	@ColumnInfo(name = "last_result") val lastResult: Int,
+	@ColumnInfo(name = "last_error") val lastError: String?,
 ) {
 
 	companion object {
@@ -42,6 +43,7 @@ class TrackEntity(
 			lastCheckTime = 0L,
 			lastChapterDate = 0,
 			lastResult = RESULT_NONE,
+			lastError = null,
 		)
 	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/tracker/domain/TrackingRepository.kt b/app/src/main/kotlin/org/koitharu/kotatsu/tracker/domain/TrackingRepository.kt
index e4f60dee0..58bd10e95 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/tracker/domain/TrackingRepository.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/tracker/domain/TrackingRepository.kt
@@ -168,6 +168,7 @@ class TrackingRepository @Inject constructor(
 			lastCheckTime = tracking.lastCheck?.toEpochMilli() ?: 0L,
 			lastChapterDate = tracking.lastChapterDate?.toEpochMilli() ?: 0L,
 			lastResult = TrackEntity.RESULT_EXTERNAL_MODIFICATION,
+			lastError = null,
 		)
 		db.getTracksDao().upsert(entity)
 	}
@@ -224,6 +225,7 @@ class TrackingRepository @Inject constructor(
 				lastCheckTime = System.currentTimeMillis(),
 				lastChapterDate = lastChapterDate,
 				lastResult = TrackEntity.RESULT_FAILED,
+				lastError = updates.error?.toString(),
 			)
 
 			is MangaUpdates.Success -> TrackEntity(
@@ -233,6 +235,7 @@ class TrackingRepository @Inject constructor(
 				lastCheckTime = System.currentTimeMillis(),
 				lastChapterDate = updates.lastChapterDate().ifZero { lastChapterDate },
 				lastResult = if (updates.isNotEmpty()) TrackEntity.RESULT_HAS_UPDATE else TrackEntity.RESULT_NO_UPDATE,
+				lastError = null,
 			)
 		}
 	}