Hello

We are playing with openproject, and there is a problem with a user, that user(administrator user) tried to create a new wiki, afther she tries to do that, there is an Internal error, and the user cannot enter to the platform, if I enter with another user, I can login without problem, I don't know how to troubleshot the problem, the logs just say:

, [2019-03-08T12:55:07.132028 #13726]  WARN -- : [auth_saml] Missing settings from '/opt/openproject/config/plugins/auth_saml/settings.yml', skipping omniauth registration.
W, [2019-03-08T12:55:07.223513 #13726]  WARN -- : hook registered

    *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *

    *   OpenProject requires UTF-8 encoding set on MySQL < 5.7              *
        and UTF-8mb4 beyond that. Please ensure having set
    *                                                                       *
            production:
    *         encoding: utf8mb4                                         *

    *   in config/database.yml.                                             *
        Otherwise, you WILL run into encoding issue when using 4 byte
    *   UTF-8 characters since utf8 encoding in MySQL doesn't support them. *

    *   If you have been running utf8 in the past, please see this guide    *
        on how to convert your database:
    *   https://mathiasbynens.be/notes/mysql-utf8mb4                        *

    *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *

W, [2019-03-08T13:55:07.396149 #16978]  WARN -- : [auth_saml] Missing settings from '/opt/openproject/config/plugins/auth_saml/settings.yml', skipping omniauth registration.
W, [2019-03-08T13:55:07.556221 #16978]  WARN -- : hook registered

can someone point me to the righ direction for diagnose the problem?

Thanks in advice