What is the exact meaning of "Too many terms in parenthesis expansion"?

when running a Fluka application, the error occurs:
*** Too many terms in parenthesis expansion ***
*** Execution terminated ***

is this meaning too many parentheses are used in geometry?
like this:

C36 5 +S4 -S16 +S24 -( +S5 -S16 +S18 ) -( +S7 -S16 +S18 ) -( +S9 -S16 +S18 ) -( +S11 -S18 +S19 ) -( +S5
-S19 +S20 ) -( +S7 -S19 +S20 ) -( +S9 -S19 +S20 ) -( +S11 -S40 -S20 +S21 ) -( +S5 -S21 +S22 ) -(
+S7 -S21 +S22 ) -( +S9 -S21 +S22 ) -( +S12 -S38 +S22 ) -( +S11 -S22 +S23 ) -( +S5 -S23 +S24 ) -(
+S7 -S23 +S24 ) -( +S9 -S23 +S24 )

in .inp file?

Dear @Newconcept_1979,

Have you tried searching the forum for “Too many terms in parenthesis expansion”? Did you read the geometry lecture (particularly slide 26) from the last online course?

Yes, it is exactly what the message is saying!

@ amario,thanks!