# Error after upgrade: Site ID is missing

**URL:** <https://community.open-emr.org/t/error-after-upgrade-site-id-is-missing/59>\
**Category:** Management and Administration\
**Created:** [March 27, 2013, 8:50pm UTC](https://community.open-emr.org/t/error-after-upgrade-site-id-is-missing/59 "2013-03-27T20:50:55Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![system](https://discourse-uploads-openemr.s3.dualstack.us-east-1.amazonaws.com/original/2X/b/bb9e4e8ae2ea7faac2e952fd9e38a3ce03aac403.png) [@system](https://community.open-emr.org/u/system)\
**Post date:** [March 27, 2013, 8:50pm UTC](https://community.open-emr.org/t/error-after-upgrade-site-id-is-missing/59/1 "2013-03-27T20:50:55Z")

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**[writecraft](https://sourceforge.net/u/writecraft/)** wrote on [Wednesday, March 27, 2013](https://sourceforge.net/p/openemr/discussion/202505/thread/07c81c0b/#75ee):

After upgrading to 4.1.1 whenever we click on Administration \> Practice we get a blank page with “Site ID is missing from session data!” and then we’re locked out and we have to close the browser and start over.&nbsp; It only happens on this one link ([http://abundanthealthbilling.com/openemr/controller.php?practice\_settings&pharmacy&action=list)](http://abundanthealthbilling.com/openemr/controller.php?practice_settings&pharmacy&action=list%29)

I did create a second site and removed it - could that be where the trouble started?&nbsp; I might not have removed all traces of it from the database or something?

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**Author:** ![system](https://discourse-uploads-openemr.s3.dualstack.us-east-1.amazonaws.com/original/2X/b/bb9e4e8ae2ea7faac2e952fd9e38a3ce03aac403.png) [@system](https://community.open-emr.org/u/system)\
**Post date:** [April 2, 2013, 4:38pm UTC](https://community.open-emr.org/t/error-after-upgrade-site-id-is-missing/59/2 "2013-04-02T16:38:18Z")

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**[penguin8r](https://sourceforge.net/u/penguin8r/)** wrote on [Tuesday, April 02, 2013](https://sourceforge.net/p/openemr/discussion/202505/thread/07c81c0b/#9f2b):

Have you tried clearing the browser cache to make sure it’s not a client side issue?&nbsp; If that doesn’t help, then it really is a problem with OpenEMR itself that has to be fixed.&nbsp; That’s where I’d start anyway.

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**Author:** ![system](https://discourse-uploads-openemr.s3.dualstack.us-east-1.amazonaws.com/original/2X/b/bb9e4e8ae2ea7faac2e952fd9e38a3ce03aac403.png) [@system](https://community.open-emr.org/u/system)\
**Post date:** [April 2, 2013, 4:55pm UTC](https://community.open-emr.org/t/error-after-upgrade-site-id-is-missing/59/3 "2013-04-02T16:55:09Z")

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**[writecraft](https://sourceforge.net/u/writecraft/)** wrote on [Tuesday, April 02, 2013](https://sourceforge.net/p/openemr/discussion/202505/thread/07c81c0b/#5471):

Thanks - fixed this over the weekend by doing a clean install of 4.1.1 and the patch, then migrating in site and database.&nbsp; The upgrade process did not work for us.