GEN_TOO_MANY_CBS is an ABAP runtime error which you may come across when using or developing within an SAP system. See below for the standard details explaining what it means and how you can avoid or fix this runtime error.
Short Dump Classification: A - ABAP Programming Error
You can view further information about a runtme error by using transaction code ST22 which will show you this and all runtime erros that have happen in your SAP system.
Also check out the Comments section below to view or add related contributions and example screen shots.
Please see program correction for more details about the possible cause of this runtime error and how it could be avoided.
Current control block count..............: <runtime parameter>.
Maximum number of control blocks.....: <runtime parameter>.
Too many <runtime parameter> control blocks generated.
Please see abap error for more details about the possible cause of this runtime error and how it could be avoided.
An attempt was made to create more than <runtime parameter> control blocks of type <runtime parameter>.
Try to split your program into smaller generation units. Splitting it
into smaller includes would not solve this problem.
Please see gen error for more details about the possible cause of this runtime error and how it could be avoided.