Cannot post!

(Tried posting this in the 'Suggestions for improvement' section, but that failed too!)

When I click My Posts I get an obscure message:

And when I try to post this here, without the message, I get a weird page telling me I'm not allowed access!

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OK, that was my 4th attempt, with minimal content, so I'll take a chance and ask:
1. Is the site having problems?
2. Does the My Posts link work OK for others?

Terry, East Grinstead, UK