this sounds like the server has blocked your location/access.
for possible suspicious activity on the server.
Be sure your cookies and temp files are deleted,
and dont use any kind of ad blocking,
also try a different browser.
if you still cannot access try using the
https://x10hosting.com/contact-us section to report your problem.
as you may get better/faster results for server issues.
The forum support is mostly based on volunteer help,
and volunteer's dont have that kind of access.