Suddenly form stopped working; no field validation, no messages, no redirects

Hi,
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Suddenly my form stopped working.
Yesterday it worked fine, but now the field validation does not work, messages do not work, redirects do not work and also debuggin does not work. (while everything is enabled in setup.
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When I hit the send button, the form just reloads; no redirect page, no e-mail, no data in database.
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Url to form you can find here: http://www.fryskereklamepriis.nl/stim
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I am using ChronoForms6 with subscription and joomla 3.8.5
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Thanks in advance for help.
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Kind Regards, Liesbeth Hiddema

HiThe same phenoma here. The Forms (Chronofrom 5) worked fine since years.

Thank you for helping
Christoph

Hi,
it's me again, Christoph.
The strange thing is, when i test the form via "Test Form" everything works fine. But on the Live Site, when the form is embedded via the Chronforms tag {chronoforms5}contactform{/chronoforms5} i can see the form, fill it out and when i submit it it reloadswithout working. (as liesbet has described)
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Thank you
Christoph

Hi,
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The same here; testform works and also when I add the form via a menu item type it works.
It does not work when added with the chronoform tags using the chronoform plugin.
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Now I just found out that when I disable the plugin system-redirect, the form works fine again, but that's not a solution because I want that plugin to be enabled.
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Maybe we have to change the order of the plugins?

Hi again,
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After turning off cache from general settings, the form seem to work again.

Ok
So we have to turn off cache to make it work recently?
No other solution?