The Spice Girls musical Viva Forever! is to close after around six months in the West End.
Craymer said: "It is with a heavy heart that we've had to make this very difficult decision to post closing notices for this original show which is blessed with one of the most brilliant casts currently on the West End stage.
"We set out to create a contemporary story that truly reflects our time; to take a satirical look at the underbelly of a TV talent show and the chaos that ensues for a mother, her daughter and their friends; a theatrical event to embrace all generations both on and off the stage.
"Testament to that achievement is the standing ovation at every performance from an audience of families and friends all enjoying a great night out.
"The show has evolved since we first opened and is now brighter, lighter and funnier, but despite the wonderful audiences and extremely positive feedback we just can't make it work.
"I'm so proud of everyone involved in this production. Viva Forever! may be taking its leave for now in the West End but the legacy of Spice Girls will never fade."
The band - Geri Halliwell, Emma Bunton, Victoria Beckham, Mel C and Mel B - reunited in December for the opening night at the Piccadilly Theatre. They said: "We want to thank the cast and all the fans for their support, and although Viva Forever! won't continue in the West End we are thrilled that the thousands of people who came to the show had as much fun as we did."
Emma later tweeted: "I am totally gutted that our wonderful show @vivaforever is coming to an end. Thank you to all our amazing fans for your constant support!"