Problem with ProCalendar v1.3.14

gemnb

I have the following problem with ProCalendar v1.3.14.
When I open/use the module in the backend, it works but it also gives the following error in the log:

Quote2018-02-08T08:44:25+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1634] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_format"
2018-02-08T08:44:25+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1983] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_firstday"
2018-02-08T08:44:25+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1984] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_format"
2018-02-08T08:44:25+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1985] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_ifformat"
2018-02-08T08:44:25+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1986] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_ifformat"
2018-02-08T08:44:25+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1987] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_ifformat"


When I want to alter the date format from dd.mm.yyyy to dd-mm-yyyy, the setting won't be saved and the errorlog shows:

Quote2018-02-08T09:01:33+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1634] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_format"
2018-02-08T09:01:33+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1983] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_firstday"
2018-02-08T09:01:33+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1984] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_format"
2018-02-08T09:01:33+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1985] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_ifformat"
2018-02-08T09:01:33+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1986] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_ifformat"
2018-02-08T09:01:33+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1987] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_ifformat"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[81] from /modules/procalendar/modify_settings.php:[81] WbErrorHandler "Undefined variable: startday"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[85] from /modules/procalendar/modify_settings.php:[85] WbErrorHandler "Undefined variable: startday"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[94] from /modules/procalendar/modify_settings.php:[94] WbErrorHandler "Undefined variable: useformat"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[95] from /modules/procalendar/modify_settings.php:[95] WbErrorHandler "Undefined variable: useformat"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[96] from /modules/procalendar/modify_settings.php:[96] WbErrorHandler "Undefined variable: useformat"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[97] from /modules/procalendar/modify_settings.php:[97] WbErrorHandler "Undefined variable: useformat"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[98] from /modules/procalendar/modify_settings.php:[98] WbErrorHandler "Undefined variable: useformat"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[99] from /modules/procalendar/modify_settings.php:[99] WbErrorHandler "Undefined variable: useformat"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[100] from /modules/procalendar/modify_settings.php:[100] WbErrorHandler "Undefined variable: useformat"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[101] from /modules/procalendar/modify_settings.php:[101] WbErrorHandler "Undefined variable: useformat"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[102] from /modules/procalendar/modify_settings.php:[102] WbErrorHandler "Undefined variable: useformat"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[103] from /modules/procalendar/modify_settings.php:[103] WbErrorHandler "Undefined variable: useformat"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[104] from /modules/procalendar/modify_settings.php:[104] WbErrorHandler "Undefined variable: useformat"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[105] from /modules/procalendar/modify_settings.php:[105] WbErrorHandler "Undefined variable: useformat"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[106] from /modules/procalendar/modify_settings.php:[106] WbErrorHandler "Undefined variable: useformat"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[114] from /modules/procalendar/modify_settings.php:[114] WbErrorHandler "Undefined variable: usetime"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[118] from /modules/procalendar/modify_settings.php:[118] WbErrorHandler "Undefined variable: usetime"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[129] from /modules/procalendar/modify_settings.php:[129] WbErrorHandler "Undefined variable: onedate"
2018-02-08T09:01:38+00:00 [E_NOTICE] /modules/procalendar/modify_settings.php:[133] from /modules/procalendar/modify_settings.php:[133] WbErrorHandler "Undefined variable: onedate"
2018-02-08T09:01:53+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1634] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_format"
2018-02-08T09:01:53+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1983] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_firstday"
2018-02-08T09:01:53+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1984] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_format"
2018-02-08T09:01:53+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1985] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_ifformat"
2018-02-08T09:01:53+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1986] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_ifformat"
2018-02-08T09:01:53+00:00 [E_NOTICE] /modules/procalendar/functions.php:[1987] from /admin/pages/modify.php:[184] require "Undefined variable: jscal_ifformat"

Anyone a similar problem?

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