I tried to upgrade dokuwiki using its upgrade plugin wizard. Upgrade went fine. After upgrade when I brows the site, the landing page loads fine but as soon as I click anywhere in the browser, it brings up a black blank page.
I check the apache's error and access log and see nothing wrong there. Set the site's log level to debug. Checked the file permissions and they look ok. Cleared the cache.
Anyone has any pointers on how and where to look further?
Solved by performing below steps:
Temporarily disable JavaScript in your browser, then use the extension manager to update all the extensions. Re-enable JavaScript afterwards.