Support » Plugin: Forminator - Contact Form, Payment Form & Custom Form Builder » Calculation not working – Paypal not visible

  • Hi,

    I have used this plugin on another website and it works perfectly.

    1. I have set up the rules as follows:

    Calculations: {number-1}*{radio-1}*299

    The preview works, the actual page does not. I have no clue on why but there are no actual calculations.

    2. I cannot show the Paypal button even though it is connected on the back-end.

    Looking forward to your support!



    The page I need help with: [log in to see the link]

Viewing 10 replies - 1 through 10 (of 10 total)
  • Plugin Support Nithin – WPMU DEV Support


    Hi @filox7

    The calculation does look correct and since it does work in preview mode the issue sounds more like a conflict.

    I checked the console and could notice many console error and it seems like the issue might be more related to the Optimization plugin. Could you please clear the cache in Autoptimize plugin and see whether it works?

    If you still notice the same issue even after clearing the cache. Please run a conflict test and see whether it helps in ruling out what might be causing the conflict.

    You can check the following flowchart on how to run a conflict test:

    Please do let us know how that goes. Have a nice day ahead.

    Kind Regards,

    pro-tip; you can disable Autoptimize on a per-request basis by adding ?ao_noptimize=1 to the URL.

    if the problem is not there at that point, some autoptimize (re-)configuration might be needed to fix this. there are troubleshooting tips and info on how to exclude in the AO FAQ.

    (but it looks like Uncaught TypeError: jQuery(...).forminatorFront is not a function persists even with AO disabled)

    hope this helps debugging,
    frank (ao dev)

    Thread Starter marcofilocamo


    Thank you both for your replies:


    I cleared the cache, no change. I also tried to remove various plugins but no changes, AO is the only one that has a direct impact on optimization. I had to put the css

    .forminator-custom-form {
      display: block !important;

    to show the form properly, does it help somehow?


    Didn’t know about that – it did not change the outcome but I will keep it in mind!



    I also have problems to display the PayPal Checkout Buttons. On Live mode it shows sometimes but in the Sandbox mode it does not show at all.

    I have everything set up correctly in the back-end. I hope we find a solution.

    Best regards,

    UPDATE: I discoverd that the PayPal Buttons show up perfectly when I remove all Page-Breaker. Is this a known Bug?

    • This reply was modified 2 years, 3 months ago by nvoyed.

    Yes it is a known bug.
    Have a look in the post I have linked.
    There are also issues if you allow multiple photos to be loaded – a single photo is ok.

    In this post

    • This reply was modified 2 years, 3 months ago by motodan.
    Plugin Support Patrick – WPMU DEV Support


    Hi @filox7

    Sorry for the delay here.

    Could you try to run a full plugin conflict test?

    Make sure to have a full backup and run this test:

    You can use a staging website for it:

    Some plugins may affect the Forminator on the front end, especially after the Update of WordPress 5.5 which removed the jQuery-migrate.

    If this is the case, you can also use this plugin:

    Hi @nvoyed

    Yes, our developers are already working to improve this behaviour, it is planned for version 1.15 if all development and tests work as expected.

    I’m afraid we can’t give the estimated time to release this version, but please keep eyes on the plugin update.

    Best Regards
    Patrick Freitas

    Thread Starter marcofilocamo


    Hi @wpmudevsupport12,

    thank you for your reply.

    I tried to add the enable jQuery plugin as well, but to no avail.

    I will look for another solution as I cannot create a staging environment (too much space required) and I tested removing multiple plugins without being able to make it work (both the calculation and the Paypal button).

    Thank you a lot for your support anyway.



    Plugin Support Predrag – WPMU DEV Support


    Hi Marco,

    You can try creating a staging site without your media transferred over as it’s not really needed for this test and is important to get the information about the conflict test itself.

    If you’re able to do this we would like to hear the results and debug it further.


    Plugin Support Patrick – WPMU DEV Support


    Hi Marco

    I hope you are doing well.

    We haven’t heard from you in a while, I’ll mark this thread as resolved.

    However, feel free to let us know if you have any additional question or problem.

    Best Regards
    Patrick Freitas

Viewing 10 replies - 1 through 10 (of 10 total)
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