Exception 0x3 on trying to play files

I’ve been happily opening mp3 files I’ve recorded myself on Audacity this morning when suddenly, no new files will open. Instead, I get the following problem report “Exception code 0x3”. I try to send the report to Audacity and I get the message “Failed to send crash report” The beginning of the crash report reads: Operating system: Mac OS X
12.7.6 21H1320
CPU: amd64
family 6 model 70 stepping 1
8 CPUs

GPU: UNKNOWN

Crash reason: EXC_ARITHMETIC / EXC_I386_DIV
Crash address: 0x110092729
Process uptime: 528 seconds

Thread 0 (crashed)
0 mod-ffmpeg.so + 0x58729
rax = 0x0000000000000000 rdx = 0x0000000000000000
rcx = 0x0000000000000000 rbx = 0x0000600003eba1b0
rsi = 0x0000000000000000 rdi = 0x00006000009e7c60
rbp = 0x00007ff7b96b20b0 rsp = 0x00007ff7b96b2010
r8 = 0x0000000000003180 r9 = 0x0000000000000030
r10 = 0x00000000000007fb r11 = 0x0000000000000154
r12 = 0x00007ff7b96b2028 r13 = 0x0000600003eba1b0
r14 = 0x00006000009e7200 r15 = 0x0000600003eb4180
rip = 0x0000000110092729
No idea what to do next. Any advice appreciated. I have reinstalled Audacity and FFMPEG.