I got the same problem as everyone else BUT I don’t have any of the discussed plugins installed.
The strange thing is that I only have 90 lines in my taxonomy.php but I still get the error being on line 289…
In this case the problem was solved after first moving all the folders for a number of plugins to a dump folder and make sure the site worked and then move them back one by one to discover which ones work and which ones doesn’t.
It appears that the Mailpress plugin caused the Taxonomy.php error, but also Events-calendar caused another error when moved back, so I just left it in the dump folder.
