Fatal error: Uncaught Error: Class ‘WP_Object_Cache’

Hello I am really new to wordpress and i got this error of the site i am working. Can someone suggest or point me to right direction to solve the problem please? Thank you so much.
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https://swatidance.com/
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Fatal error: Uncaught Error: Class ‘WP_Object_Cache’ not found in /home/printsmith59/public_html/swatidance.com/wp-includes/cache.php:156 Stack trace: #0 /home/printsmith59/public_html/swatidance.com/wp-includes/load.php(580): wp_cache_init() #1 /home/printsmith59/public_html/swatidance.com/wp-settings.php(133): wp_start_object_cache() #2 /home/printsmith59/public_html/swatidance.com/wp-config.php(106): require_once(‘/home/printsmit…’) #3 /home/printsmith59/public_html/swatidance.com/wp-load.php(37): require_once(‘/home/printsmit…’) #4 /home/printsmith59/public_html/swatidance.com/wp-blog-header.php(13): require_once(‘/home/printsmit…’) #5 /home/printsmith59/public_html/swatidance.com/index.php(22): require(‘/home/printsmit…’) #6 {main} thrown in /home/printsmith59/public_html/swatidance.com/wp-includes/cache.php on line 156

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