Help me! I have problem "Flows stopped due to missing node types"

[Steve-Mcl]

At a guess, you have imported a flow that uses something called "www-request".

This is likely an old contribution node.

I would recommend you search your node-red flow for www-request (use CTRL+F) then change them for the standard HTTP Request nodes.

Alternatively, you might find you have deleted the imported flow but they STILL cause an error. In which case, it is likely a left over config node. Again, use the Search OR look in the "unused config" nodes...