Issue with the resizer

My website keeps on showing half of the aread only when it loads initially and when I check the console it says:

“Uncaught TypeError: Cannot read properties of null (reading ‘_onResize’)
at e.onThrottledResize (libs.js?ver=6.4.1:39:8607)
at i (jquery.min.js?ver=3.7.1:2:86755)”

Can you please let me know how can I fix this?

Thanks