Help with meta pixel wordpress plugin fatal error

I recently deleted the Meta Pixel plugin installed on my WordPress E-commerce site. I did this because it was causing error messages and causing my site to load slow. However, even with me deleting it it’s still causing my site to load slow. I had my hosting company troubleshoot my site and they said the 2 following codes below are causing repeated requests when they’re called. This the causes the site to load slow and send an error message.

1st Call:

https://www.facebook.com/privacy_sandbox/pixel/register/trigger/?id=5448099935318385&ev=ViewContent&dl=https%3A%2F%2Fdevelopment.charismahomedecor.com%2F&rl=&if=false&ts=1767399513477&cd%5Bvalue%5D=35&cd%5Bcurrency%5D=USD&cd%5Bcontent_ids%5D=8327&cd%5Bcontent_type%5D=product&sw=1920&sh=1080&v=2.9.248&r=stable&ec=2191&o=12318&fbp=fb.1.1767396426512.417706968843652361&ler=empty&cdl=API_unavailable&plt=6632.400000035763&it=1767399483418&coo=false&expv2%5B0%5D=pl0&expv2%5B1%5D=el3&expv2%5B2%5D=bc1&expv2%5B3%5D=mr2&rqm=FGET

2nd Call:

https://www.facebook.com/tr/?id=5448099935318385&ev=ViewContent&dl=https%3A%2F%2Fdevelopment.charismahomedecor.com%2F&rl=&if=false&ts=1767399524449&cd%5Bvalue%5D=35&cd%5Bcurrency%5D=USD&cd%5Bcontent_ids%5D=8416&cd%5Bcontent_type%5D=product&sw=1920&sh=1080&v=2.9.248&r=stable&ec=3216&o=12318&fbp=fb.1.1767396426512.417706968843652361&ler=empty&cdl=API_unavailable&plt=6632.400000035763&it=1767399483418&coo=false&expv2%5B0%5D=pl0&expv2%5B1%5D=el3&expv2%5B2%5D=bc1&expv2%5B3%5D=mr2&rqm=GET

Can anyone tell me why this issue is happening if I deleted the plugin? Also if there is some bit of code still on the backend of my site, can you tell me what file name the code is at so I can delete it? Also can you tell me what line of code I should be deleting?

Any help would be greatly appreciated.

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