Tried to install a plugin and get this error
"dokuwiki\Exception\FatalException: Array and string offset access syntax with curly braces is no longer supported
An unforeseen error has occured. This is most likely a bug somewhere. It might be a problem in the code2 plugin.
More info has been written to the DokuWiki error log."
The plugin I tried to install was the codehighlight Plugin. I fixed the error by deleting the "code2" directory.
(My wiki will document a lot of code segments, so I will use the <code> tag.)