Please Help!

[Fifthe1ement]

I just upgraded to 3.5.4 and then did some Maintenance and now everytime I try and post I get this error at the top and it won't let me post...

The following errors occurred when this message was submitted:

1. The message you have entered is too short. Please lengthen your message to at least 1 characters.
2. A required field called pagetext is missing or has an invalid value.

I tried optimizing and repairing the tables... but it didn't work... ???

[Brad]

Have you customized the newthread or newreply templates? Are there any plug-ins or products installed? Have you made modifications to the .php files?