I cant see or open my facebook priofile

Hello,i hope someone help coz realy i dont get this.i can open everthing on facebook except my profile,when i try to open it it says
The page you requested was not found
You may have clicked an expired link or mistyped the address. Some web addresses are case sensitive.
I DONT KNOW REALY WHY.i have try even with other ancount but nothing is the same
it says page not found.i hope someone knows and have an answer
thanks