Return value of SocialAccountAttribute::check() must be of the type array

Uncaught TypeError: 
Return value of SocialAccountAttribute::check() must be of the type array, string returned in /usr/share/fusiondirectory/plugins/personal/personal/class_personalInfo.inc:72 
Stack trace: 
#0 /usr/share/fusiondirectory/include/simpleplugin/attributes/class_SetAttribute.inc(618): SocialAccountAttribute->check() 
#1 (closed) /usr/share/fusiondirectory/include/simpleplugin/attributes/class_SetAttribute.inc(568): OrderedArrayAttribute->handleAddAndEditValue() 
#2 (closed) /usr/share/fusiondirectory/include/simpleplugin/class_simplePlugin.inc(1104): OrderedArrayAttribute->loadPostValue() 
#3 (closed) /usr/share/fusiondirectory/include/simpleplugin/class_simpleTabs.inc(229): simplePlugin->save_object() 
#4 (closed) /usr/share/fusiondirectory/include/management/class_management.inc(466): simpleTabs->save_object() 
#5 (closed) /usr/share/fusiondirectory/include/management/class_management.inc(1254): management->execute() 
#6 (closed) /usr/share/fusiondirectory/include/class_pluglist.inc(564): management::mainInc()

changed milestone to %FusionDirectory 1.4

added plugin-personal label

added PJ1801-0146 label

mentioned in commit 654926d7

added 45m of time spent at 2019-05-22

added To Be Tested label

changed due date to June 04, 2019

assigned to @jswaelens and unassigned @MCMic

I could add a social account without any issue on demo-dev

closed

added 5m of time spent at 2019-06-06

added Fixed label and removed To Be Tested label

removed due date