depreciated code

I’m seeing the following warnings with PHP 8.3:

Deprecated: html_build_attributes(): Implicitly marking parameter $escape as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/mcaskill/php-html-build-attributes/Function.HTML-Build-Attributes.php on line 17
Deprecated: League\Plates\Template\Func::call(): Implicitly marking parameter $template as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/league/plates/src/Template/Func.php on line 96
Deprecated: Parsedown::blockSetextHeader(): Implicitly marking parameter $Block as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/erusev/parsedown/Parsedown.php on line 715
Deprecated: Parsedown::blockTable(): Implicitly marking parameter $Block as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/erusev/parsedown/Parsedown.php on line 853
Deprecated: Illuminate\Support\Arr::first(): Implicitly marking parameter $callback as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Arr.php on line 183
Deprecated: Illuminate\Support\Arr::last(): Implicitly marking parameter $callback as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Arr.php on line 212
Deprecated: Illuminate\Support\Collection::filter(): Implicitly marking parameter $callback as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Collection.php on line 355
Deprecated: Illuminate\Support\Collection::first(): Implicitly marking parameter $callback as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Collection.php on line 371
Deprecated: Illuminate\Support\Collection::last(): Implicitly marking parameter $callback as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Collection.php on line 668
Deprecated: Illuminate\Support\Traits\EnumeratesValues::times(): Implicitly marking parameter $callback as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Traits/EnumeratesValues.php on line 144
Deprecated: Illuminate\Support\Traits\EnumeratesValues::when(): Implicitly marking parameter $callback as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Traits/EnumeratesValues.php on line 475
Deprecated: Illuminate\Support\Traits\EnumeratesValues::when(): Implicitly marking parameter $default as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Traits/EnumeratesValues.php on line 475
Deprecated: Illuminate\Support\Traits\EnumeratesValues::whenEmpty(): Implicitly marking parameter $default as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Traits/EnumeratesValues.php on line 497
Deprecated: Illuminate\Support\Traits\EnumeratesValues::whenNotEmpty(): Implicitly marking parameter $default as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Traits/EnumeratesValues.php on line 509
Deprecated: Illuminate\Support\Traits\EnumeratesValues::unless(): Implicitly marking parameter $default as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Traits/EnumeratesValues.php on line 522
Deprecated: Illuminate\Support\Traits\EnumeratesValues::unlessEmpty(): Implicitly marking parameter $default as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Traits/EnumeratesValues.php on line 534
Deprecated: Illuminate\Support\Traits\EnumeratesValues::unlessNotEmpty(): Implicitly marking parameter $default as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Traits/EnumeratesValues.php on line 546
Deprecated: Illuminate\Support\Enumerable::times(): Implicitly marking parameter $callback as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Enumerable.php on line 28
Deprecated: Illuminate\Support\Enumerable::filter(): Implicitly marking parameter $callback as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Enumerable.php on line 268
Deprecated: Illuminate\Support\Enumerable::when(): Implicitly marking parameter $default as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Enumerable.php on line 278
Deprecated: Illuminate\Support\Enumerable::whenEmpty(): Implicitly marking parameter $default as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Enumerable.php on line 287
Deprecated: Illuminate\Support\Enumerable::whenNotEmpty(): Implicitly marking parameter $default as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Enumerable.php on line 296
Deprecated: Illuminate\Support\Enumerable::unless(): Implicitly marking parameter $default as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Enumerable.php on line 306
Deprecated: Illuminate\Support\Enumerable::unlessEmpty(): Implicitly marking parameter $default as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Enumerable.php on line 315
Deprecated: Illuminate\Support\Enumerable::unlessNotEmpty(): Implicitly marking parameter $default as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Enumerable.php on line 324
Deprecated: Illuminate\Support\Enumerable::first(): Implicitly marking parameter $callback as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Enumerable.php on line 432
Deprecated: Illuminate\Support\Enumerable::last(): Implicitly marking parameter $callback as nullable is deprecated, the explicit nullable type must be used instead in /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Enumerable.php on line 555
Warning: Cannot modify header information - headers already sent by (output started at /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Traits/EnumeratesValues.php:144) in /home/southcott/public_html/wp-includes/functions.php on line 7310
Warning: Cannot modify header information - headers already sent by (output started at /home/southcott/public_html/wp-content/plugins/age-gate/vendor/illuminate/collections/Traits/EnumeratesValues.php:144) in /home/southcott/public_html/wp-admin/admin-header.php on line 14