Problem with plugin

Hi, I am having a problem with the installation of the plugin Visual Composer. Could you help me with?

Error Message:
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 30720 bytes) in /home/storage/a/e0/9c/cortinasclick/public_html/wp-admin/includes/media.php on line 1004

Site: http://cortinasclick.hospedagemdesites.ws/wp-admin
User: admin
Pass: admin

Thanks,
Marcelo