CartHook Post Purchase Upsell

4 bugs in a row is not coincidence, first couldn't finish to install the app after, it require someone check the app and their support email me to try again a day later.
then couldn't add product upsells to the funnel cause app got stuck loading forever, it took a whole afternoon and a technician check my store,
then after the funnel was done I test it myself and it says the offer wasn't available (which is false cause the product have stuck)
then.. they email me to check again, and now I cant even access to the app cause says 505 server error.

used cart hook in 2018 and made 20% extra revenue from $3M. it was so good, its a shame its abandoned and nothing works like it use to be.