Hoping this is an easy one. Here is the backtrace. Happens when I hit the "Create Account" button.
[Yve--N0CrNL3S_ildqFUjAAAABM] /wiki/index.php?title=Special:CreateAccount&returnto=Special:ConfirmAccounts/authors Error: Call to undefined method User::setOption()
Backtrace:
from /usr/local/www/apache24/data/wiki/skins/Vector/includes/Hooks.php(220)
#0 /usr/local/www/apache24/data/wiki/includes/HookContainer/HookContainer.php(338): Vector\Hooks::onLocalUserCreated(User, boolean)
#1 /usr/local/www/apache24/data/wiki/includes/HookContainer/HookContainer.php(137): MediaWiki\HookContainer\HookContainer->callLegacyHook(string, array, array, array)
#2 /usr/local/www/apache24/data/wiki/includes/HookContainer/HookRunner.php(2370): MediaWiki\HookContainer\HookContainer->run(string, array)
#3 /usr/local/www/apache24/data/wiki/includes/auth/AuthManager.php(1503): MediaWiki\HookContainer\HookRunner->onLocalUserCreated(User, boolean)
#4 /usr/local/www/apache24/data/wiki/includes/auth/AuthManager.php(1217): MediaWiki\Auth\AuthManager->continueAccountCreation(array)
#5 /usr/local/www/apache24/data/wiki/includes/specialpage/AuthManagerSpecialPage.php(376): MediaWiki\Auth\AuthManager->beginAccountCreation(User, array, string)
#6 /usr/local/www/apache24/data/wiki/includes/specialpage/AuthManagerSpecialPage.php(502): AuthManagerSpecialPage->performAuthenticationStep(string, array)
#7 /usr/local/www/apache24/data/wiki/includes/htmlform/HTMLForm.php(726): AuthManagerSpecialPage->handleFormSubmit(array, VFormHTMLForm)
#8 /usr/local/www/apache24/data/wiki/includes/specialpage/AuthManagerSpecialPage.php(435): HTMLForm->trySubmit()
#9 /usr/local/www/apache24/data/wiki/includes/specialpage/LoginSignupSpecialPage.php(314): AuthManagerSpecialPage->trySubmit()
#10 /usr/local/www/apache24/data/wiki/includes/specialpage/SpecialPage.php(671): LoginSignupSpecialPage->execute(NULL)
#11 /usr/local/www/apache24/data/wiki/includes/specialpage/SpecialPageFactory.php(1378): SpecialPage->run(NULL)
#12 /usr/local/www/apache24/data/wiki/includes/MediaWiki.php(315): MediaWiki\SpecialPage\SpecialPageFactory->executePath(string, RequestContext)
#13 /usr/local/www/apache24/data/wiki/includes/MediaWiki.php(912): MediaWiki->performRequest()
#14 /usr/local/www/apache24/data/wiki/includes/MediaWiki.php(563): MediaWiki->main()
#15 /usr/local/www/apache24/data/wiki/index.php(53): MediaWiki->run()
#16 /usr/local/www/apache24/data/wiki/index.php(46): wfIndexMain()
#17 {main}