Trying to launch site and getting database error

The following error is showing for my site. I’m not able to access via WP-admin any more.
Please advise.

Notice: The called constructor method for WP_Widget is deprecated since version 4.3.0! Use
__construct()
instead. in /hermes/walnaweb05a/b2653/moo.lrtent/wp-includes/functions.php on line 3457 Fatal error: Call to undefined function wc_get_page_id() in /hermes/walnaweb05a/b2653/moo.lrtent/wp-content/themes/basel/inc/classes/Catalog.php on line 28

Hello,

Thank you for contacting us.

We just visited your web-site and got “Internal Server Error” for a few minutes. Then, after reloading, it works correctly. Both admin and frontend sections. Did you fix it?

Regards

I found the issue. Had set the site to catalog mode although we’re not selling any product and not using the WooCommerce setting, but for some reason that setting caused the error.

So you don’t want to activate WooCommerce at all? In this case simply disable Catalog Mode option also.

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