Facebook account security problem

Hello guys,

In the past 3 months i have problems with my account every week. Every week my account was blocked, the first times this is happens without any reason, just need to confirm the account with phone or friends recognition, and new password after this. 3 days after this procedure i am blocked to do anything, no link postings, no comments, nothing. After 3 days everything is fine and the problem come again. The last time (today) finally i get a reason for the block. Can anybody tell me what's happen and how to protect my account from another block? Thanks, see the attachment bellow!

Thats becoming very common now. Getting it on a lot of accounts and I know I am the only one logging in. Are you using a bot?

No, i am not using any bots. I have a fan pages on this account and i post in this pages periodically. I was deleted all apps, used before, changed the login email with new (no one cannot know my email, it's not visible) and changed the password. This is happens to my friend account also, we no have any connection, different ips, everything is different...

You are Hacking people account with your url

?!? This is impossible...