SAP Message C$308 - Error when calling long text processing

Diagnosis
Before the system can call the long text editor, it needs to read thetext from the database, create a temporary copy, and so on. This isespecially true when you work with a change number.
An error occurred during one of these steps.

System Response
The system terminated long text processing. The data remains unchanged.

Procedure
Call some other entries to check whether you have a general problem inlong text processing. If this is the case, you probably have a problemin SAPscript. Exit the screen by choosing Cancel to preventfurther damage to data in the database.
If you are using a change number, repeat all steps that led up to theerror without using a change number. If the error still occurs, youprobably have an problem in SAPscript. However, if the long-text editoris working perfectly, the problem may lie within the Environment,Health and Safety (EH&S) component.
Contact your system administrator to correct the error.