Iphone 15.0 and wechat disrupted and all the records on wechat needs to erase then can open. Why I need my chat memos and files on wechat.

i updated my iphone 11 to 15.0 version few days ago. and when it's 15.0 version, I had issues with my wechat, which disrupted easies for few times each day. if I try to reopen it, it just can't do it and I also redownloaded wechat and restarted the phone, but all don't work and if I only erase the wechat memos and records, then I can open it. never happened this before but I have to erase all the records on wechat.

Anybody have this problem? I wish I never updated to 15.0 now. (((((((((((((