This isnt a mod issue its a wildcard issue. In most cases dinos over a certain level will auto default their stats on a server restart. its on wildcards end. also if you put too many points into certain stats they can reset. i never tame a dino past a certain point and if i have a tame. i usually stop them at lvl 1499 when im out leveling them. cuz in my personal experience. dinos over 1500 stat reset on server resets (generally). the only way i can see restoring your stats back to where you had it and/on making your tame even stronger. try the dino station mod.