how can i fix my door on my INDESIT WIE137S washing machine?

could someone help me. my door on my INDESIT WIE137S
1300 Spin Speed Washer washing machine does not close i think it's probably because of the rubber but it looks perfectly fine but it just doesn't close please help me so i can wash all my clothes because the more time i wait the more times i'll have to take it to the washers in my local town untill it's fixed or untill i have bought a new one. thank you