The following fatal error appears after config step

<b>Fatal error</b>:  Uncaught UnknownClassException: setupStepConfig in /usr/share/fusiondirectory/include/class_pluglist.inc:509
Stack trace:
#0 /usr/share/fusiondirectory/include/simpleplugin/class_simplePlugin.inc(1629): pluglist::pluginInfos('setupStepConfig')
#1 /usr/share/fusiondirectory/include/simpleplugin/class_simplePlugin.inc(1546): simplePlugin-&gt;browseForeignKeys('handle_move', NULL, NULL)
#2 /usr/share/fusiondirectory/include/simpleplugin/class_simplePlugin.inc(1400): simplePlugin-&gt;handleForeignKeys()
#3 /usr/share/fusiondirectory/include/simpleplugin/class_simplePlugin.inc(1353): simplePlugin-&gt;handle_post_events('modify', Array)
#4 /usr/share/fusiondirectory/include/simpleplugin/class_simplePlugin.inc(1235): simplePlugin-&gt;post_save()
#5 /usr/share/fusiondirectory/setup/class_setupStepConfig.inc(116): simplePlugin-&gt;save()
#6 /usr/share/fusiondirectory/setup/class_setup.inc(84): setupStepConfig-&gt;save_object()
#7 /usr/share/fusiondirectory/setup/main.inc(29): setup-&gt;save_object()
#8 /usr/share/fusiondirectory/html/setu in <b>/usr/share/fusiondirectory/include/class_pluglist.inc</b> on line <b>509</b><br />

Distribution Name and Version

Debian

FusionDirectory Version

1.4-dev

PHP version used

7

Origin of php packages

Debian

Steps to Reproduce

1. Go through web setup
2. [Second Step]
3. [and so on...]

Expected behavior:

No crash

Actual behavior:

Fatal error

Reproduces how often:

Additional Information

I already have a config object in the LDAP, not sure if it’s important.