attache is the screenshot of the order section and what customers were complaining about

what happens is, when some goes to checkout page on place order it keeps on loading for lot of time, no matter what payment method choosen, after putting all the information ofcourse, and then it shows the customer nothing/same page or sometimes just one order, but on the back-end we see the orders twice one in processing and one as paid, or both paid, which should be on the one order. and we are ending up giving refunds and having charge backs due to this and dealing with customer service request for the error orders placed, when we speak to the customer what they did most of them just click on place order on checkout once and saw only one order but got 2 emails of order as in the backend 2 of them where registered.

after this we changed the theme to the child version and tried it worked fine and we also reinstalled the current basel main theme, no help there or disabling the plugins also didn’t help.

just do a normal buying process and once you go to the checkout and click on the place order you will see the loading for a long time and if a order is place check the back end.