Monster skill de-upgraded bug

I just noticed my Cerberus's Super Fire Bomb skill has been reduced from Super Fire Bomb + 2 to simply a normal Super Fire Bomb. Can this be fixed? Thanks

[support7]

Dear player,
Can you tell us the following info:
1. when did your monster upgrade to Super Fire Bomb + 2?

2. was there any special action you have recently? Like change to higher or lower floor?

Thank you so much for your support.

Any further questions, please feel free to let us know.

Best Regards,
Vicky
Support Team