508162 JOOMLA SPECIALIST - Fix Joomla Error

I have a website here: [url removed, login to view] . Its based on Joomla, my problem is that when I try in the backend I receive the following error:

Fatal error: Call to undefined method stdClass::onAuthenticate() in /home/xxxxxxx/public_html/libraries/joomla/user/[url removed, login to view] on line 121

I have pinpointed the error in plugins/legacy. But I don't know how to fix it.

I need someone to fix it for me TODAY.

No escrow. Payment in full once completed. Budget is $30

Beceriler: Her şey Kabul, Joomla, PHP

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İşveren Hakkında:
( 83 değerlendirme ) Boston,

Proje NO: #2254089



I know the problem is. A login file is missing file is missing. I inspect it. Ready to start now. Thanks, Towhid

%selectedBids___i_period_sub_7% gün içinde 30%project_currencyDetails_sign_sub_9% %project_currencyDetails_code_sub_10%
(48 Değerlendirme)