Hi maldo,
There are two variables within your php.ini file that are responsible for managing user file uploads.
* post_max_size This variable determines the maximum amount of data that PHP will accept in a single form submission using the POST method. Its default value is 8 MB, as shown below:
post_max_size = 8M
* upload_max_filesize This variable limits the size of an individual file uploaded to your site. Its default value is 2 MB, as shown below:
upload_max_filesize = 2M
An increase in the value of these variables expands user file upload limits.
NOTE: After making changes to php.ini, you must perform an httpd restart for them to take effect
Please try to contact your hosting provider, they will help you to do this.