One of my characters died and I resurrected him, but after that he can't earn any experience anymore. Other characters work fine. Whole party just leveled up but not him. Is there any way to fix it?

Are you sure he's not getting any XP at all? I believe being raised or resurrected costs a certain amount of XP, so he'll be behind the others in that aspect, since he'd lose some XP due to the cost of resurrection. This would explain why the rest of the party levels but he doesn't.

Yeah, I checked it carefully. He stuck on certain amount of XP. Game probably didn't spot that he is alive again T_T. For now I use cheat every time when rest of party have level up.

If someone else have this problem, you can use this cheat:

game.party[X].stat_base_set(stat_experience,XXX)

after "game.party" insert number of party member [0] is first, [1] is second etc. and after "stat_experience," insert amount of experience that you want.