I just use whatever came with the Mac, and I bought a collection called Font Library, but I've had it installed for years. I recently built a website through Weebly, but didn't download any fonts or anything. How would I check that?
This is the error code lines: (if that tells you anything)

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000000c7000009
Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Tuesday morning... still no other replies : (
and now none of my Microsoft programs will open. More crash reports. The only stuff still working is Safari and Mail.