YACReaderLibrary crashes immediately on opening

YACReaderLibrary has started to crash (quit unexpectedly) immediately on trying to open it.

I'm running MacOS 10.15.7 (Catalina) on a 2012 MacBook Air. This had been working perfectly with YACReaderLibrary 9.13.1 for some time, until yesterday.

I've tried reinstalling 9.13.1 (both Qt6 and Qt5), with no improvement. I then installed 9.13.0, which would open, and rebuilt my comic library. However on restarting my laptop today, that will not open either.

The only thing I can think of is that I've been restarting my laptop a lot in the past couple days - generally I restart rarely. It's possible the problem started after my first restart since storing my comic collection on my hard drive rather than an external drive (external drive failed so I'm rebuilding collection from scratch).

Any help I can get would be appreciated. Ultimately I'll be moving YACReaserLibrary to a server, but until then, this is causing a major issue!

Problem report is long, but here are some bits that look relevant?:

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000008
Exception Note: EXC_CORPSE_NOTIFY

Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [1154]

VM Regions Near 0x8:
-->
__TEXT 0000000108067000-0000000108307000 [ 2688K] r-x/r-x SM=COW /Applications/YACReaderLibrary.app/Contents/MacOS/YACReaderLibrary

[...]

Thread 0 crashed with X86 Thread State (64-bit):
rax: 0x0000000000000000 rbx: 0x0000600001bb8b60 rcx: 0x0000000000008069 rdx: 0x0000000000000de1
rdi: 0x0000000000000000 rsi: 0x0000000000000000 rbp: 0x00007ffee7b93c60 rsp: 0x00007ffee7b93c40
r8: 0x0000000000002335 r9: 0x000000000000001f r10: 0x00007f8c9ee00000 r11: 0x0000000000000000
r12: 0x0000000000000001 r13: 0x00007f8c9b62d538 r14: 0x0000000000002601 r15: 0x0000000000002601
rip: 0x00000001090eb9c3 rfl: 0x0000000000010206 cr2: 0x0000000000000008

Logical CPU: 2
Error Code: 0x00000004 (no mapping for user data read)
Trap Number: 14

in your home folder there is this Library/Preferences/YACReader/YACReaderLibrary rename it to YACReaderLibrary.bak and start the app, does it crash?

There is actually no folder for YACReader within Library/Preferences at all (either in the main Library or in user Library folders).

The only YACReader folder is at:

/Users/admin/Library/Application Support/YACReader

This has a YACReaderLibrary folder, which has a YACReaderLibrary.ini in it if that's what I'm looking for?

yeah, that one

When I change the .ini file to a .bak file, YACReaderLibrary opens, but says I don't have any libraries yet.

Import the one you already have created before.

This seems to have fixed it. I was able to import my library, my reading progress was still intact amazingly. I have restarted my computer and I am still able to open it. Hopefully this will hold!

Thank you so much!

If you have the old .ini file, please, send it to me so I can check why the crash happened.