Unable to send error reports . . . .

I am using a Macbook Air w/Mac OS X 10.5.8. For about 6 weeks, I have not been able to send an error report to Apple. It tells me the transmission has failed and that I should try again later. I thought it might be a symptom of something bad. So, I repaired HD permissions and (since Safari crashes have been the recent error report events), cleaned up my Safari (caches, history, etc.). Tried to resend the most recent error report agter all that, but to no avail. Here are the log entries arpund that most recent send:

Feb 18 18:06:31 joan-heminways-macbook-air-2 SubmitReport[4869]: missing kCRProblemReportProblemTypeKey

Feb 18 18:06:35 joan-heminways-macbook-air-2 /usr/sbin/ocspd[4872]: starting

Feb 18 18:06:35 joan-heminways-macbook-air-2 SubmitReport[4869]: CFReadStreamGetError() returned: 3

Feb 18 18:06:35 joan-heminways-macbook-air-2 SubmitReport[4869]: Failed to submit compressed hang report for Safari

Feb 18 18:07:35 joan-heminways-macbook-air-2 Microsoft Word[148]: doClip: empty path.

Feb 18 18:07:35 joan-heminways-macbook-air-2 [0x0-0x18018].com.microsoft.Word[148]: Sat Feb 18 18:07:35 joan-heminways-macbook-air-2.local Microsoft Word[148] <Error>: doClip: empty path.

Feb 18 18:07:37 joan-heminways-macbook-air-2 Microsoft Word[148]: doClip: empty path.

Feb 18 18:08:07: --- last message repeated 3 times ---

Feb 18 18:07:37 joan-heminways-macbook-air-2 [0x0-0x18018].com.microsoft.Word[148]: Sat Feb 18 18:07:37 joan-heminways-macbook-air-2.local Microsoft Word[148] <Error>: doClip: empty path.

Any ideas? Should I even be worried about this?