KEEP GETTING ERRORS WHEN I TRY TO LOAD , CML LABS CISCO ENTERPRISE 

I was asked to re-image the firewalls , do the FTD's need to be registered on the FMC , when I re-image them , i have had cisco TAC , with me for severals weeks , now and he's done a deep dive on linux , 'to try to fix this problem , here's a snippet...

WHY CAN YOU ONLY RESERVE FOR 2 DAYS , WE USED TO BE ABLE TO RESERVE FOR 5 DAYS , I FEEL LIKE I'M GETTING THINGS DONE , BUT NOE FEEL RUSHED BETWEEN WORK , LIFE AND LABS , I FEEL LIKE I NEED MORE TIME , CAN U SAVE THE LAB YOUR WORKING ON AND GO BACK TO...

are they any sandboxes available ,with controllers , i found one on the Devnet website , but the URL , said it has expired , any suggestions would be much appreciated , thank you

Would love to take a course on Automation , / of cisco"s ISE2.0  / any suggestions would be much appreciated  BIG THANK YOU,, CISCO MIND WIDE OPEN 2020 !!