[pmwiki-users] can't save pmwiki page after modification

[wang]

      Dear pmwiki users,


I recently tried to modify our wiki page using edit, but can't be saved. 
It always shows message like this:


      PmWiki can't process your request

Cannot write page to PmWiki.HomePage (wiki.d/PmWiki.HomePage)...changes 
not saved

We are sorry for any inconvenience.


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Does anyone know why is this? Thanks a lot!

Xueli