Recently I ran into a strange issue with out-of-the-box SharePoint workflow. Once the workflow is started, the SharePoint automatically cancels the workflow and the workflow outcomes becomes as "access denied", the description you see is "The workflow could not update the item, possibly because one or more columns for the item require a different type of information".
While the root cause of this issue is not yet known, a simple work around would be to re-publish the workflow using SharePoint designer...
The impact of this solution that new version of the workflow will be published to your site and all new workflow instances should work normally. However, this will not fix the status of existing workflow instances that ran into error status.
To fix these instances (Possibly on a production environment) follow these steps...
Complete KB Article: http://support.microsoft.com/kb/2496152
Thanks for bringing this workaround to our attention. Cheers.
but it deactivate feature on production then it's affects other workflows also.
if some workflows are in progress and deactivate workflow feature what will happen on production. it's affects only for approval workflow of specific document library or all document library. is all workflows deactivate which are already in progress or already assigned to library,Please give explaination on this.