Error con la actualización

Hola, nunca había tenido problemas, actualice el plug in y crashea mi sitio esta es la respuesta que obtuve:

“The issue which prevented you from accessing your website was caused by the “mojito-sinpe” plugin. After disabling the above-specified plugin no issues occurred while accessing your website.
Although we are unsure why the above-specified plugin is not properly working, everything seems to be working properly without it. If you have recently updated it to a newer version or have altered their original code, this might be a potential reason for the situation that has occurred.

If you insist on continue using it, we would recommend that you either reinstall it and see if it works properly or if it doesn’t, discuss its operation with their maintainers and developers`”

Gracias

The page I need help with: [log in to see the link]