A long time ago was a "disappearing saves" error between SpaceCore and Entoarox Framework. You need to update those mods or try the previous version if there is no new one for android.
The game saves progress when the in-game day ends, i.e., when the farmer goes to bed, collapses from exhaustion, or collapses at 2am. All progress during a day is lost if the player quits the game without ending the day. In multiplayer, the game saves after all players click through the prompts...
stardewvalleywiki.com
In addition, I would recommend updating the mods that have available updates.