Just uploaded 57 logs and had errors with 4 out of them. If you enter a P2P-point you should check that the entry is correct and of course there are more and more illegal activities. Each Z6FF- is actually invalid as there is no valid area yet.
You can find the valid list under the entry WWFF-directory.
There are often manual entries of P2P-points which has the wrong tag-length. All WWFF-reference has a four-digit-number.

If your log contain just one invalid P2P-point the whole log will not be uploaded. So the log-manager has to send it back to you for correction.
73, Manfred DF6EX WWFF-log-manager