i don't often get this issue, but sometimes when i've completed a battle, healed my pet, and then clicked "fight this opponent again," i get this message even though my battle pet is fully fed, happy, and healed. the only way to get around it is to go back to the "challenge an opponent" page and do it the long way. waiting and refreshing sometimes helps, but it can take a few minutes for the page to recognize my pet as eligible for battle, so the long way is actually faster in this case. no clue what causes this issue - sometimes it happens if i accidentally click "fight this opponent again" before the healer page has finished loading (and even then, refreshing after the heal has gone through doesn't fix it), but most of the time it just seems to happen for no reason.

pretty sure this is a cache thing if you hit fight this opponent again before your pet is healed. it's annoying though :x

that's what i thought, but it seems to happen even after i've made sure to complete healing before clicking the button, and sometimes it doesn't happen when i accidentally click too soon - which is why i considered the cache thing, but it's just so inconsistent...

I only had it happen if I clicked too soon or the heal page didn't load fast enough when I clicked to fight again

Hopefully it can be fixed though

i haven't noticed it, but then again i haven't been in a situation where i'm battling, losing, healing, and battling again in rapid succession since the last gelatin boss.

If it happens again just let me know. :)