Hi n3to14,
Sorry to hear that but I think it is not about Loco Translate plugin.
If you are using a theme or a plugin which not 100% translatable, like it not use WP translating functions, or it uses those functions in a wrong way (missing text domain, wrong text domain…), Loco Translate cannot detect, nothing can.
If you need any further assistance, just create a support ticket here https://wordpress.org/support/plugin/loco-translate/
I believe the author can find the best solution for you.
Regards,
Ken