Firmware update failed- please help

[alex.barbulescu@gmail.com]

Hello everybody

I have a big problem. After the update LM3 reactor V2 with the 2017 firmware from here https://dl.openrb.com/lm-17/reactorv2-20170620.img

the interface Logic machine used for manage configurations is not accesible. in browser debugger I have 25 errors like this: 
ext-scada.js?version=20150210:1 Uncaught ReferenceError: Ext is not defined
   at ext-scada.js?version=20150210:1

also in system log couple errors refering to EXT4 See attachments

old firmware is somewere accesible. can I revert? 

Please help!!!