The Glasgow-born singer hasn’t performed since being diagnosed with FND last year, and was due to join Nathan Carter for a concert in Letterkenny.
But she has announced she will no longer be performing after being hospitalised with sepsis.
In a statement, she said: “Hi everyone, I’m so sorry to say that I won’t be able to perform tonight with Nathan Carter at the Clanree Hotel, Letterkenny.
“I was admitted to hospital a couple of days ago with sepsis, but I want to reassure you all that I’m in the right place and receiving the best care and treatment to get things under control.
“I just need a little time to rest and recover, btu I will be absolutely fine.
“I’m so disappointed to miss what was meant to be my first live show back, but I’m sure you’ll all have a fantastic night with Nathan as always. I can’t wait to see you all very soon.
“Than you for all your continued support and understand – it truly means the world.
“Looks like my New Year is starting in March instead.”