Text Id F08 language EN not found message no TD600

the above mentioned error in the subject i am getting when i am trying to Change  PO.

In detail the errror is Text  ID F08 language EN not found

    Message no. TD600

Diagnosis

    You want to read a text which does not exist in the data base (or update

    memory).

System response

    Reading could not be carried out.

Procedure

    You need to create this text:

    1.  Initialization (module INIT_TEXT)

    2.  Save (module SAVE_TEXT)

Hello gurus,

I am getting this error while changing the PO.The PO is not opening just giving this message.