Hi @Cult,
i tried to edit the settings in the administration page (step 4 of the installation instructions ), but this causes:
Internal Server Error
The server encountered an internal error and was unable to complete your request.
Please contact the server administrator if this error reappears multiple times, please include the technical details below in your report.
More details can be found in the server log.
Technical details
Remote Address: 172.16.16.2 Request ID: z6EFfttcmavJaCTe+SCm
NC 10.0.1, Ubuntu 16.04 x64, solr 6.3.0, java 1.8.0_111
###nextcloud.log
{"reqId":"d\/CPsj2\/AMLN+DD7+30C","remoteAddr":"172.16.16.2","app":"index","message":"Exception: {\"Exception\":\"Error\",\"Message\":\"Class 'Solarium\\\\Client' not found\",\"Code\":0,\"Trace\":\"#0 \\\/var\\\/www\\\/nextcloud\\\/3rdparty\\\/pimple\\\/pimple\\\/src\\\/Pimple\\\/Container.php(113): OCA\\\\Nextant\\\\AppInfo\\\\Application->OCA\\\\Nextant\\\\AppInfo\\\\{closure}(Object(OC\\\\AppFramework\\\\DependencyInjection\\\\DIContainer))\\n#1 \\\/var\\\/www\\\/nextcloud\\\/lib\\\/private\\\/AppFramework\\\/Utility\\\/SimpleContainer.php(103): Pimple\\\\Container->offsetGet('SolariumClient')\\n#2 \\\/var\\\/www\\\/nextcloud\\\/apps\\\/nextant\\\/lib\\\/AppInfo\\\/Application.php(93): OC\\\\AppFramework\\\\Utility\\\\SimpleContainer->query('SolariumClient')\\n#3 \\\/var\\\/www\\\/nextcloud\\\/3rdparty\\\/pimple\\\/pimple\\\/src\\\/Pimple\\\/Container.php(113): OCA\\\\Nextant\\\\AppInfo\\\\Application->OCA\\\\Nextant\\\\AppInfo\\\\{closure}(Object(OC\\\\AppFramework\\\\DependencyInjection\\\\DIContainer))\\n#4 \
