Disc won't initialise

Help - I have a philips dvdr630R video cassette recorder and DVD video player /recorder
It was working earlier today when I watched a recording on DVD that I recorded last night. using DVD+RW
Now If I put ANY dvd’s in - either blank or recorded on, it comes up “unknown disc,please check disc”
It won’t initialise a new disc, also it won’t let me into the set up menu to initialise either.
I scroll down to disc option, but the first four options;-
Disc initialise/disc finalize/disc label/ disc protect/ are “greyed out”
I have been to disc label before to name my titles but I cannot access that now. All customer service lines are closed now, can anyone help me.
I have unplugged it too to reboot but no!