Hi,
you have reached MySQL hard limit.
In the Easy Profile user table each field create one or more column. Unfortunately MySQL have a hard limit that not allow you to create infinite columns.

To solve this you can:
1) remove trashed fields (see screenshot)
2) with a tool like phpMyAdmin you can change type of column in the table #__jsn_users from VARCHAR to TEXT (only for columns related to Text field type)

Hi thanks for the reply. I have nothing trashed or unpublished fields.
I actually need more a lot more as im using it for a big profile.

2) with php do you do that by changing what ive highlighted in attachment image?

could you confirm that's right before i make the change please, thanks

Hi,
yes but anyway we recommend you to keep original type for core fields, basically you can change the type from "mobile_number" column