OpenERP Client error

[klm2242]

我目前在供應商這邊輸入資料，有時候都會出現以下的錯誤訊息，請問為何呢?

OpenERP Client error
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Your version of OpenERP is unsupported. Support & maintenance services are available here: OpenERP Entreprise.
Uncaught Error: NOT_FOUND_ERR: DOM Exception 8
http://xxxxx/web/webclient/js:8684