AJAX error Service Unavailable

[degobiol]

Your Portal Version: 2.1.0-rc2
Your phpBB Type: Standard phpBB3
MODs installed: Yes
Your knowledge: Beginner

What have you done before the problem was there?


What have you already tryed to solve the problem?


Description and Message
hello everybody.
i'm french so sorry for my english.
I use a board3 2.1.0-rc2 with phpbb 3.1.8.
i use the new version of mchat 2.0.0rc3 board3 with mchat 2.0.0rc5 extension.
i use the jv arcade too. phpBB Arcade - Board3 Portal Modules 6.0.1
when i activate the jv arcade or mchat board3 i have an error :"AJAX error Service Unavailable" when i want to modifie or create a new block in board3.
i searched every where but i don't know what can i do??
thank you for help

[Kirk]

The current portal version is this: viewtopic.php?f=40&t=11060

[degobiol]

thanks a lot !!
i've installed the good version before but i had frequencly an error in the website:'error too many redirection" so i tried with this version.
i change the version now!

[degobiol]

Hello when i activate the board 2.1.0 i ve regulary an error "error too many redirectory" and all page redirect to index.php with error.
When i desactivate the board i have no error.
I tested to desactivate the mchat for board and jv arcade to board but it same.
Can you help me please?
Thanks a lot

[Kirk]

Use your root/.htaccess with the original.

[degobiol]

hello !
i tested with the .htaccess oriinal but it s the same i have the error.
when i delete cache, the site restart normally

[Kirk]

I have no idea what the error is.

[degobiol]

i created a php page to delete cache et redirect too portal called del_cache.php
it's work normally.
now i search how to declare in .htaccess when error 310 to go to my page but it s create an error 500.
i m lost now !!!