Help pls ASAP (cant select categories)

[rstrah]

tinymce.min.js?ver=49110-20201110:2 Uncaught Error: Node cannot be null or undefined
    at Object.ir [as fromDom] (tinymce.min.js?ver=49110-20201110:2:46730)
    at op (tinymce.min.js?ver=49110-20201110:2:187711)
    at ap (tinymce.min.js?ver=49110-20201110:2:187859)
    at pp.execCommand (tinymce.min.js?ver=49110-20201110:2:189483)
    at tN.execCommand (tinymce.min.js?ver=49110-20201110:2:346040)
    at core.min.js?ver=3.6.0:1:123797
    at h (vendor.min.js?ver=3.6.0:16:41930)
    at y (vendor.min.js?ver=3.6.0:16:42191)
    at m (vendor.min.js?ver=3.6.0:16:42088)
ir @ tinymce.min.js?ver=49110-20201110:2
op @ tinymce.min.js?ver=49110-20201110:2
ap @ tinymce.min.js?ver=49110-20201110:2
execCommand @ tinymce.min.js?ver=49110-20201110:2
execCommand @ tinymce.min.js?ver=49110-20201110:2
(anonymous) @ core.min.js?ver=3.6.0:1
h @ vendor.min.js?ver=3.6.0:16
y @ vendor.min.js?ver=3.6.0:16
m @ vendor.min.js?ver=3.6.0:16
setTimeout
bi @ vendor.min.js?ver=3.6.0:16
v @ vendor.min.js?ver=3.6.0:16
b @ vendor.min.js?ver=3.6.0:16
(anonymous) @ core.min.js?ver=3.6.0:1
requestAnimationFrame
r.contentWindow.onresize @ core.min.js?ver=3.6.0:1
plugin.min.js?ver=49110-20201110:1 Deprecated TinyMCE API call: <target>.onNodeChange.add(..)

It is not possible to select categories in the classic news editor. After updating the notes, the categories remain unselected

[airbesi]

Same in my website !!