Sorry for the inconvenience, but various checks are performed to prevent abuse of the system. You just might be “collateral damage”.
New users are restricted from posting links, and unfortunately, code snippets often will frequently be falsely flagged for containing links. You can try to use the code block markup to help. Otherwise, you need to “break” the presumed “links” by adding a space before or after the period, or use a comma instead of a period.
Again, my apologies for the inconvenience. You will eventually be able to post normally - just be patient.