Error: 500 - behavior::tabstate not found.

gaatec
43 Posts
gaatec posted this 21 December 2022

Hi there,
When I in Joomla 4.2.6 configure a menuitem "Category-List" so as to enable frontend editors to easile view and edit articles in the frontend. I get the following error:

500 - behavior::tabstate not found.

This is working fine with the Joomla Cassiopeia template, While in Themler v.559 this lead to an error

Hi there, When I in Joomla 4.2.6 configure a menuitem "Category-List" so as to enable frontend editors to easile view and edit articles in the frontend. I get the following error: 500 - behavior::tabstate not found. This is working fine with the Joomla Cassiopeia template, While in Themler v.559 this lead to an error

Last edited 21 December 2022 by gaatec

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18 Comments
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moag2000
8 Posts
moag2000 posted this 01 January 2023

i got the same when i just open an editor (even with no editor selected for the user) in the front end. It's kind of annoying

i got the same when i just open an editor (even with no editor selected for the user) in the front end. It's kind of annoying
gaatec
43 Posts
gaatec posted this 03 January 2023

i got the same when i just open an editor (even with no editor selected for the user) in the front end. It's kind of annoying

Yes it is indeed annoying,

I do however hope that the guys at Themler keep an eye on the forums and look to rectify the problems on the next release.

> i got the same when i just open an editor (even with no editor selected for the user) in the front end. It's kind of annoying Yes it is indeed annoying, I do however hope that the guys at Themler keep an eye on the forums and look to rectify the problems on the next release.
gaatec
43 Posts
gaatec posted this 30 March 2023

Over 4 Months and still no resolution. Not even an acknowledgement of the problem.

That is very disappointing.

Over 4 Months and still no resolution. Not even an acknowledgement of the problem. That is very disappointing.
moag2000
8 Posts
moag2000 posted this 04 January 2024

Hi All,

just wanted to let you know that this is still an issue....

Cheers,
Michael

Hi All, just wanted to let you know that this is still an issue.... Cheers, Michael
landynpierce281411
2 Posts
landynpierce281411 posted this 15 February 2024

I always look forward to reading your blog posts. They never disappoint. Solar

I always look forward to reading your blog posts. They never disappoint. [Solar][1] [1]: https://medium.com/@solar-roofing/2024-maryland-solar-panel-costs-savings-guide-1b1fde81ab15
NIGEFA1990
7 Posts
NIGEFA1990 posted this 19 February 2024

Und immer noch keine Lösung - der Support lässt echt zu wünschen übrig - aber Hauptsache wieder ein Jahr bezahlt.

Und immer noch keine Lösung - der Support lässt echt zu wünschen übrig - aber Hauptsache wieder ein Jahr bezahlt.
gaatec
43 Posts
gaatec posted this 04 March 2024

Und immer noch keine Lösung - der Support lässt echt zu wünschen übrig - aber Hauptsache wieder ein Jahr bezahlt.

I agree, the support is close to non existent, which is extremely disappointing all the time this is a "paid for" solution.

> Und immer noch keine Lösung - der Support lässt echt zu wünschen übrig - aber Hauptsache wieder ein Jahr bezahlt. I agree, the support is close to non existent, which is extremely disappointing all the time this is a "paid for" solution.
lilycollins9x
7 Posts
lilycollins9x posted this 12 March 2024

That's Not My Neighbor

Und immer noch keine Lösung - der Support lässt echt zu wünschen übrig - aber Hauptsache wieder ein Jahr bezahlt.

Das ist nicht der Fall.

[That's Not My Neighbor][1] > Und immer noch keine Lösung - der Support lässt echt zu wünschen übrig - aber Hauptsache wieder ein Jahr bezahlt. Das ist nicht der Fall. [1]: https://thatsnot-myneighbor.io/
carl481
6 Posts
carl481 posted this 25 April 2024

Great to know that there is a solution to this specific errors. Resin bound driveways

Great to know that there is a solution to this specific errors. [Resin bound driveways][1] [1]: https://prestonresindriveways.co.uk
aldenbaigan20
5 Posts
aldenbaigan20 posted this 25 April 2024

I also experiencing this issue while opening an editor. Lmao. resin driveways Cardiff

I also experiencing this issue while opening an editor. Lmao. [resin driveways Cardiff][1] [1]: https://resindrivescardiff.co.uk
aldenbaigan20
5 Posts
aldenbaigan20 posted this 25 April 2024

I hope it will resolve soon. Someone can help us? driveway contractors

I hope it will resolve soon. Someone can help us? [driveway contractors][1] [1]: https://swansearesindriveways.co.uk
aldenbaigan20
5 Posts
aldenbaigan20 posted this 03 May 2024

You should reset your setup to fix it. Roofers in Leicester

You should reset your setup to fix it. [Roofers in Leicester][1] [1]: https://leicesterroofingservice.co.uk
aldenbaigan20
5 Posts
aldenbaigan20 posted this 03 May 2024

Try it. I will work. Scaffolding Tower Hire

Try it. I will work. [Scaffolding Tower Hire][1] [1]: https://www.leicesterscaffolding.co.uk/
frautim68
8 Posts
frautim68 posted this 03 May 2024

Outstanding article, thank you for consistently providing valuable insights. Solar

Outstanding article, thank you for consistently providing valuable insights. [Solar][1] [1]: https://medium.com/@jerryspivey_21970/is-solar-worth-it-in-ohio-2024-guide-8a1826160dec
aldenbaigan20
5 Posts
aldenbaigan20 posted this 03 May 2024

Thanks for this wonderful and great information mate. Roof Repairs

Thanks for this wonderful and great information mate. [Roof Repairs][1] [1]: https://roofingmiddleton.co.uk/
skyemu729
7 Posts
skyemu729 posted this 07 July 2024

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skyemu729
7 Posts
skyemu729 posted this 07 July 2024

A video players and editors application made by VN is called VN Video Proofreader for PC Producer VlogNow. Make proficient blooper reels, feature reels, instructional exercises, and other video-put together material right with respect to your Android gadget by downloading VN Video Manager Producer VlogNow for PC.

A video players and editors application made by VN is called VN Video Proofreader for PC Producer VlogNow. Make proficient blooper reels, feature reels, instructional exercises, and other video-put together material right with respect to your Android gadget by downloading VN Video Manager Producer VlogNow for PC.
pregnant.gibbon.quuj
1 Posts
pregnant.gibbon.quuj posted this 08 October 2025

I've encountered similar frontend editing issues with custom templates before. The tabstate behavior error usually stems from missing JavaScript dependencies. In my experience, switching to a more stable template temporarily helps identify if it's template-related. Speaking of user-friendly interfaces, I find platforms like Geometry Dash really excel at smooth frontend interactions - their level editor is incredibly intuitive. Have you tried checking if all required JS files are properly loaded in your Themler template?

I've encountered similar frontend editing issues with custom templates before. The tabstate behavior error usually stems from missing JavaScript dependencies. In my experience, switching to a more stable template temporarily helps identify if it's template-related. Speaking of user-friendly interfaces, I find platforms like [Geometry Dash][1] really excel at smooth frontend interactions - their level editor is incredibly intuitive. Have you tried checking if all required JS files are properly loaded in your Themler template? [1]: https://geometrylitepc.com/
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