too many files open

[tob at b-e-s-t.com]

I run centos 6.7(Final) with filepro 5.0
 
I am getting this error:
 
*** A filePro Error Has Occurred ***
File Table Full
On File: /appl/filepro/mupat/index6G.A
Too many filePro files open at once.?
Maximum is 60.?
 
It is a prc that does alot of copying from one key to another but I am careful to close all the files with a close statement.
The starnge thing is that it will process about 20 records before it generates the error.
I'm hope there is some sort of clear command I can use?
I used to see this type of error years ago.
Is there any thing I should try before showing all the code?
Thanks
tob at b-e-s-t.com
 
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