NPE when adding Selections tool

When adding tool selection fields I got the following error as shown in screenshot.

Log:

[INFO] [talledLocalContainer] Caused by: java.lang.NullPointerException
[INFO] [talledLocalContainer] at org.onehippo.cms7.services.contenttype.HippoContentTypeService.<init>(HippoContentTypeService.java:61)
[INFO] [talledLocalContainer] at org.onehippo.cms7.essentials.dashboard.utils.ContentTypeServiceUtils.fetchDocuments(ContentTypeServiceUtils.java:76)
[INFO] [talledLocalContainer] at org.onehippo.cms7.essentials.rest.DocumentResource.getAllTypes(DocumentResource.java:78)
[INFO] [talledLocalContainer] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[INFO] [talledLocalContainer] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[INFO] [talledLocalContainer] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[INFO] [talledLocalContainer] at java.lang.reflect.Method.invoke(Method.java:497)
[INFO] [talledLocalContainer] at org.apache.cxf.service.invoker.AbstractInvoker.performInvocation(AbstractInvoker.java:181)
[INFO] [talledLocalContainer] at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:97)
[INFO] [talledLocalContainer] ... 37 more