Hi, i had the same problem this morning as well, but I found the solution. Do you still need it?
Please help me I have the same problem
There's no convenient solution to that issue.
The "
solution" is to find the address' private key or the watch-only wallet's master public key's 'seed phrase'/'master private key' to create a (
non-watching-only) Standard wallet.
You must have imported an address(es) or master public key to create the wallet or it's from someone else,
there are no other means of creating a watch-only wallet other than those options.