so when i try to customize theme the wordpress preview takes half page, due to which not able to make changes to website.
after turning on debugging it list error.
after i disable the customize post plugin am able to customize website, but is the customize post plugin required also i see that said plugin was last updated 8yrs back.

“Warning: Array to string conversion in /home/u922077983/domains/<url>/public_html/wp-content/plugins/customize-posts/php/class-wp-customize-posts-preview.php on line 1423

Fatal error: Uncaught TypeError: Illegal offset type in isset or empty in /home/u922077983/domains/<url>/public_html/wp-content/plugins/customize-posts/php/class-wp-customize-posts-preview.php:1424 Stack trace: #0 /home/u922077983/domains/<url>/public_html/wp-includes/class-wp-hook.php(324): WP_Customize_Posts_Preview->export_preview_data() #1 /home/u922077983/domains/<url>/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #2 /home/u922077983/domains/<url>/public_html/wp-includes/plugin.php(517): WP_Hook->do_action() #3 /home/u922077983/domains/<url>/public_html/wp-includes/general-template.php(3208): do_action() #4 /home/u922077983/domains/<url>/public_html/wp-content/themes/picante/footer.php(57): wp_footer() #5 /home/u922077983/domains/<url>/public_html/wp-includes/template.php(810): require_once(‘/home/u92207798…’) #6 /home/u922077983/domains/<url>/public_html/wp-includes/template.php(745): load_template() #7 /home/u922077983/domains/<url>/public_html/wp-includes/general-template.php(92): locate_template() #8 /home/u922077983/domains/<url>/public_html/wp-content/themes/picante/page.php(117): get_footer() #9 /home/u922077983/domains/<url>/public_html/wp-includes/template-loader.php(106): include(‘/home/u92207798…’) #10 /home/u922077983/domains/<url>/public_html/wp-blog-header.php(19): require_once(‘/home/u92207798…’) #11 /home/u922077983/domains/<url>public_html/index.php(17): require(‘/home/u92207798…’) #12 {main} thrown in /home/u922077983/domains/<url>/public_html/wp-content/plugins/customize-posts/php/class-wp-customize-posts-preview.php on line 1424”