# OR won't open on Mac

**URL:** <https://forum.openrefine.org/t/or-wont-open-on-mac/1860>\
**Category:** Support and Helpdesk\
**Created:** [October 29, 2024, 10:30am UTC](https://forum.openrefine.org/t/or-wont-open-on-mac/1860 "2024-10-29T10:30:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Agnieszka](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.openrefine.org/agnieszka/32/1293_2.png) [@Agnieszka](https://forum.openrefine.org/u/Agnieszka)\
**Post date:** [October 29, 2024, 10:30am UTC](https://forum.openrefine.org/t/or-wont-open-on-mac/1860/1 "2024-10-29T10:30:20Z")

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A member of my team who works on Mac (Sonoma 14.7) had been using OR for a couple of weeks and one day it stopped starting. She only gets an error message saying the server did not send any data ERR\_EMPTY\_RESPONSE  
What can it be related to? The only thing that changed during this time is antivirus update (she uses Eset 8.2.800.0) - could this be related?  
What can be done in this situation?  
Thanks a lot for your suggestions!

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**Author:** ![tfmorris](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.openrefine.org/tfmorris/32/17_2.png) [@tfmorris](https://forum.openrefine.org/u/tfmorris)\
**Post date:** [October 29, 2024, 5:46pm UTC](https://forum.openrefine.org/t/or-wont-open-on-mac/1860/2 "2024-10-29T17:46:38Z")

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An anti-virus update is definitely a possible culprit. They can block web connections that they consider suspicious. You (or your IT department) might want to look at possible settings to allow local connections to the OpenRefine server program.