Internal Server Error After install employee_self_service

[wepe17]

We have findings with installation details of self-hosted results like this:
frappe 15.54.1 version-15
erpnext 15.50.0 version-15
hrms 15.40.0 version-15
employee_self_service 0.0.3 version-15

For the installation there are no problems, but when we migrate, our site access appears Internal Server Error. Must uninstall employee_self_service first then our site can be accessed again, but cannot connect to the mobile application from ESS Nesscale

Please help, thank you