Cannot Preview/Upload CRF

I am using OpenClinica v. 3.14 and generated a new CRF using templates v3.3 and v3.9.
Recently I was successful uploading CRF using template v3.3.
Today, I tried uploading a new CRF using template v3.3 and received the following message from OpenClinica upon hitting "Preview CRF" button:
"oops, an error occured".

The database is running and so is tomcat, and I can elsewise navigate through the study.

Any help would be greatly appreciated.

Thank you so much,



  • kristiakkristiak Posts: 1,301 ✭✭✭
    Hi Silke,

    Usually this problem may occur when there are many errors in the template. Try to go through it again and identify the problems. Alternatively you can can divide the template in sections e.g. only loading the first 20 lines. If that works, continue with the next 10 etc.


  • sroeddersroedder Posts: 11
    Hi Krister,
    Thank you very much for the good tip. In this case, it was due to Tomcat/Java not processing fully. Do you have any experience with that? I talked to our IT department and they recommended moving the database to a network server. Will that improve the processing?

    Thanks again,

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