@avaskye , you’re welcome! btw, I contacted them weeks ago to try have it fixed & they never did anything, I recommend using a different pop up app - heaps of other free ones out there 
good luck! 
Topic summary
Two pre-launch issues: the PayPal button/icon disappeared from the cart on mobile and desktop, and a product-description video shows a blank thumbnail on mobile unless manually played (autoplay desired).
Initial checks confirmed PayPal was active in Shopify Settings > Payments. Disconnecting/reconnecting PayPal and clearing cache did not help.
Root cause identified: a conflict with the “EcomSend” discount popup app. Disabling that app restored the PayPal button. Another participant replicated the issue and confirmed EcomSend was the culprit.
Current status for PayPal: workaround is to turn off or replace EcomSend; the app’s team reportedly has no fix yet. Recommendation from users is to use a different popup app.
Video autoplay on mobile: no solution or guidance provided in the thread; issue remains open.