Node-red-contrib-ui-time-scheduler node not working

Hi, I am using v.4.02, and the node-red-contrib-ui-time-scheduler @marozz/ 0.0.3.
If I try to use it, I get the error message below.
Even with the original 1.17.2 I get the same problem.
Has anyone an idea what to do?
If I try to uninstall it, the uninstallation fails. Any help is highly appreciated.
Cheers
'


Unexpected Node Error


Info:
Node object is not a node-red Node
Stack:
TypeError: Cannot read properties of undefined (reading 'length')
at TimeSchedulerNode.Node.close (/usr/lib/node_modules/node-red/node_modules/@node-red/runtime/lib/nodes/Node.js:319:41)
at stopNode (/usr/lib/node_modules/node-red/node_modules/@node-red/runtime/lib/flows/Flow.js:749:31)
at Flow.stop (/usr/lib/node_modules/node-red/node_modules/@node-red/runtime/lib/flows/Flow.js:388:35)
at /usr/lib/node_modules/node-red/node_modules/@node-red/runtime/lib/flows/index.js:481:43
at Array.forEach ()
at stop (/usr/lib/node_modules/node-red/node_modules/@node-red/runtime/lib/flows/index.js:477:19)
at /usr/lib/node_modules/node-red/node_modules/@node-red/runtime/lib/flows/index.js:220:20

Please report this issue, including the information logged ...
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Welcome to the forum @Luupus

What OS and hardware are you using?

Assuming that you have a conventional install, in a command window go into your .node-red folder and run
npm uninstall node-red-contrib-ui-time-scheduler
and copy/paste the full output here please. Copy/paste not screenshow please.

Just found out, I had the wrong UI library. Got the correct one and now it works perfectly.
Thanks for the reply, Colin.