I see a warning:
"call_state_offhook list.size()==0 number is null"
whenever I call someone with my Samsung Galaxy S9. What is the issue and how can I stop seeing this warning?
after installing a call recorder, have same message
I found it was due to my call recorder app, uninstalling and reinstalling made no difference. I had to go into settings, then apps, click on the app and storage, followed by clear data. This resolved the issue.