RSS Feed/News ErrorException: [E_WARNING] Undefined array key "unsubscribeEmailAddress" in src/XF/Install/Upgrade/2021470-2214.php at line 33

[ENXF NET]

Could anyone please help me? Error when upgrading. Forum is down.

ErrorException: [E_WARNING] Undefined array key "unsubscribeEmailAddress" in src/XF/Install/Upgrade/2021470-2214.php at line 33

1. XF::handlePhpError() in src/XF/Install/Upgrade/2021470-2214.php at line 33
2. XF\Install\Upgrade\Version2021470->step3() in src/XF/Install/Controller/Upgrade.php at line 179
3. XF\Install\Controller\Upgrade->actionRun() in...

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