Error occurs when I play Epic Level Cleric?

Here's the thing:

I play Temple of Elemental Evil with Circle of Eight and Temple Plus installed.

However, when my Cleric character becomes Epic Level(level beyond 21), and tries to memorize spells, the game crashes with this message: https://64.media.tumblr.com/5323ee8.../e4396470f019d1e2ca632c6861ac16bef3c9e0c8.jpg

Anyone knows how to solve this?

PS. It says I should report this to RPGCodex but I'm asking here first. Sorry.

 

I've encountered this cleric bug before and I don't believe there is a current fix.

Afaik, the only current solution is to stop at 20 and take the remaining levels in another class. If you are already L20+, this should not be a big change to the character.

It's not a widely known issue because most don't get to L20+ by endgame and if they do, it is most often as multi-classed.

 

Finally found it. Buffer overflow issue, as you might have guessed. Fixed for next version.