Assistance complains of “no recent data, check caobs & cacor”. Fluxes on screen go to zero.
In cacor area the cacor display and its starting term should have been ticking over every 10 sec. In this fault they are frozen!
Only known fix is to either use ^C in the xterm to kill cacor OR, if that does not work, login to caccc as corr from another xterm and do an explicit kill on the cacor process.
Then restart cacor. (If cacor does not restart there may be residual processes running on caccc that need killing. Most likely a tk or sync process.)
If caobs does not pick it up exit and restart caobs. You need to do start/stop on the scan at least twice to get the system working properly.