We are running an Azure WordPress instance that has been having stability issues since configuring W3 Total Cache. Having reached out to Microsoft Support, they identified an issue with W3 Total Cache that is producing a PHP Fatal error. Based on the following log excerpt, can you provide any potential troubleshooting steps that we can try?

[20-Aug-2025 09:25:09 UTC] PHP Fatal error: Uncaught TypeError: mysqli_num_fields(): Argument #1 ($result) must be of type mysqli_result, false given in /home/site/wwwroot/wp-includes/class-wpdb.php:3859
Stack trace:
#0 /home/site/wwwroot/wp-includes/class-wpdb.php(3859): mysqli_num_fields(false)
#1 /home/site/wwwroot/wp-includes/class-wpdb.php(780): wpdb->load_col_info()
#2 /home/site/wwwroot/wp-content/plugins/w3-total-cache/DbCache_WpdbInjection_QueryCaching.php(230): wpdb->__get(‘col_info’)
#3 /home/site/wwwroot/wp-content/plugins/w3-total-cache/DbCache_WpdbNew.php(217): W3TC\DbCache_WpdbInjection_QueryCaching->query(‘DESCRIBE wp_3_s…’)
#4 /home/site/wwwroot/wp-includes/class-wpdb.php(3142): W3TC\DbCache_WpdbNew->query(‘DESCRIBE wp_3_s…’)
#5 /home/site/wwwroot/wp-admin/includes/upgrade.php(2945): wpdb->get_results(‘DESCRIBE wp_3_s…’)
#6 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/stellarwp/db/src/DB/DB.php(78): dbDelta(Array)
#7 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/stellarwp/db/src/DB/DB.php(279): TEC\Common\StellarWP\DB\DB::TEC\Common\StellarWP\DB\{closure}()
#8 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/stellarwp/db/src/DB/DB.php(76): TEC\Common\StellarWP\DB\DB::runQueryWithErrorChecking(Object(Closure))
#9 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/stellarwp/schema/src/Schema/Tables/Contracts/Table.php(534): TEC\Common\StellarWP\DB\DB::delta(‘\n\t\t\tCREATE TABL…’)
#10 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/stellarwp/schema/src/Schema/Builder.php(270): TEC\Common\StellarWP\Schema\Tables\Contracts\Table->update()
#11 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/stellarwp/schema/src/Schema/Register.php(144): TEC\Common\StellarWP\Schema\Builder->up()
#12 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/stellarwp/shepherd/src/Tables/Provider.php(44): TEC\Common\StellarWP\Schema\Register::table(Object(TEC\Common\StellarWP\Shepherd\Tables\Tasks))
#13 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/stellarwp/shepherd/src/Provider.php(74): TEC\Common\StellarWP\Shepherd\Tables\Provider->register()
#14 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/lucatume/di52/src/Container.php(427): TEC\Common\StellarWP\Shepherd\Provider->register()
#15 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/src/Common/Contracts/Container.php(63): TEC\Common\lucatume\DI52\Container->register(‘TEC\\Common\\Stel…’)
#16 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/src/Common/Libraries/Shepherd.php(30): TEC\Common\Contracts\Container->register(‘TEC\\Common\\Stel…’)
#17 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/src/Common/Contracts/Provider/Controller.php(48): TEC\Common\Libraries\Shepherd->do_register()
#18 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/lucatume/di52/src/Container.php(427): TEC\Common\Contracts\Provider\Controller->register()
#19 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/src/Common/Contracts/Container.php(63): TEC\Common\lucatume\DI52\Container->register(‘TEC\\Common\\Libr…’)
#20 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/src/Common/Libraries/Provider.php(50): TEC\Common\Contracts\Container->register(‘TEC\\Common\\Libr…’)
#21 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/lucatume/di52/src/Container.php(427): TEC\Common\Libraries\Provider->register()
#22 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/src/Common/Contracts/Container.php(63): TEC\Common\lucatume\DI52\Container->register(‘TEC\\Common\\Libr…’)
#23 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/src/Tribe/Container.php(306): TEC\Common\Contracts\Container->register(‘TEC\\Common\\Libr…’)
#24 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/src/Tribe/Main.php(821): tribe_register_provider(‘TEC\\Common\\Libr…’)
#25 /home/site/wwwroot/wp-content/plugins/the-events-calendar/common/src/Tribe/Main.php(123): Tribe__Main->bind_implementations()
#26 /home/site/wwwroot/wp-includes/class-wp-hook.php(324): Tribe__Main->plugins_loaded(”)
#27 /home/site/wwwroot/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#28 /home/site/wwwroot/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#29 /home/site/wwwroot/wp-settings.php(559): do_action(‘plugins_loaded’)
#30 /home/site/wwwroot/wp-config.php(159): require_once(‘/home/site/wwwr…’)
#31 /home/site/wwwroot/wp-load.php(50): require_once(‘/home/site/wwwr…’)
#32 /home/site/wwwroot/wp-blog-header.php(13): require_once(‘/home/site/wwwr…’)
#33 /home/site/wwwroot/index.php(17): require(‘/home/site/wwwr…’)
#34 {main}
thrown in /home/site/wwwroot/wp-includes/class-wpdb.php on line 3859