safari blocked plug-in error trying to print packing slip

[benji888]

I can't believe I am the only one with this problem, but I cannot find this in any search I try....

PayPal now uses shipstation for printing shipping labels. It's been quite a while since I've done this, so I'm not sure what I'm missing, but, I have no problem printing the shipping label, but when I try to print a packing slip I get a "blocked plug-in" error... what effing plug-in could it possibly need? Why can't I find an answer to this anywhere online??

again, I can print a shipping label just fine, so why do I get a "blocked plug-in" error when I try to print a packing slip?

I just moved and will be selling some things online, and I may be selling things online as a regular thing, I really need to be able to print packing slips.

macOS Mojave (latest) safari 14.1.2

I can't find in safari why I am getting this error either.

 

[tensixturtle]

I don't know if you are still having the same issue, but can you go to Safari > Preferences > Extensions and see if anything there is disabled/denied? Also, do you possibly have Adobe Flash Player still installed? You would want to uninstall it and see if that helps.