First check your upload_max_filesize and post_max_size in your PHP configuration.
Another less likely restriction is the LimitRequestBody Apache directive.
https://httpd.apache.org/docs/current/mod/core.html#LimitRequestBody
First check your upload_max_filesize and post_max_size in your PHP configuration.
Another less likely restriction is the LimitRequestBody Apache directive.
https://httpd.apache.org/docs/current/mod/core.html#LimitRequestBody