It is required that every free hosting user logs in the forum at least once every 31 days. This means that there can be at most 31 days between a first login and a second.
Inactivity suspensions are minor in the sense that you can unsuspend yourself from the Account Management Panel. It may take a few minutes until your account is unsuspended. Please only create a ticket if you are unable to unsupend yourself or you think the inactivity suspension has been an error.
Unsuspending yourself does not count as a login. Only logins at the x10Hosting Forums count. If you are unable to login once every four weeks or simply do not want to, there is an add-on that removes the inactivity timer for $3/year here.