Help with Warning: line errors

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First let me apologize if this is a question that’s been asked and answered but I couldn’t find it.

I’m attempting to create a new page in my WP site. Whenever I add a new element it seems okay at first but once I view the page I see error messages like this one:

Warning: preg_match(): Compilation failed: invalid range in character class at offset 1w in /home/ridingin/public_html/ wp-content/plugins/js_composer/include/classes/shortcodes/vc-basic-grid.php on line 177

I’ve received help to fix similar errors before but it seems they’re continuous.

On the widgets page I also see errors like:
The “trx_addons_widget_twitter” block was affected by errors and may not function properly. Check the developer tools for more details.

But there doesn’t seem to be an issue with the Twitter display on the actual site.

I’m still not at all familiar with coding. My theme came with WPBakery but the theme account is now inactive.
I’m wondering if I purchase the WPBakery license if my problems will be solved?🤞

Any help.would be greatly appreciated. Ease and thank you.

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