Error Upload Profile Image

Hello!

I have a big problem in my website, its not possible to load a profile photo: “data-max_files_error=”you can only upload one image” data-upload_help_text=””>Upload”.

I already saw a post with the same thing, and someone gave a solution, but how can I edit the core php code of the plugin?

I have the free version of the plugin.

Best,

website: vacaysquad.com