Errors with latest PHP 8.3

Here are the errors I’m getting since updating my site to PHP 8.3. These errors only appear on the admin side.

Deprecated: Creation of dynamic property TenWebNewLibConfig::$plugin_wd_docs_link is deprecated in /hermes/bosnacweb02/bosnacweb02cd/b2900/ipw.gierachscom/public_html/wp-content/plugins/photo-gallery/wd/config.php on line 82

Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /hermes/bosnacweb02/bosnacweb02cd/b2900/ipw.gierachscom/public_html/wp-includes/functions.php on line 7329

Deprecated: str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in /hermes/bosnacweb02/bosnacweb02cd/b2900/ipw.gierachscom/public_html/wp-includes/functions.php on line 2189

Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /hermes/bosnacweb02/bosnacweb02cd/b2900/ipw.gierachscom/public_html/wp-includes/functions.php on line 7329

Deprecated: str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in /hermes/bosnacweb02/bosnacweb02cd/b2900/ipw.gierachscom/public_html/wp-includes/functions.php on line 2189

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