No further list processing possible

What happened?
    You requested too many consecutive nested call screens.

What can you do?
    If possible, leave the current screen level before making a further
    selection (function Back=F3 or Cancel=F12).
    Note down which actions and inputs caused the error.


    To process the problem further, contact you SAP system
    administrator.

    Using Transaction ST22 for ABAP Dump Analysis, you can look
    at and manage termination messages, and you can also
    keep them for a long time.

Error analysis
    At present, the maximum permitted number of nested screen levels is
    restricted to 50.