Error Message in Lightroom Classic 11.2

On my last import of images I have almost every other image is blank, the thumb is grey and no information is available . All the images I took appear to be there and the missing ones do not represent anything missing. the images do have their own lightroom number. when i control click to delete from disk i get the following error below.  Can someone suggest what is going on here. thanks, jamie

?:0: attempt to index field 'rootFile' (a nil value)