File can't be accessed on Linux cluster

Question

I am trying to run a job on a Linux cluster.

I am trying to read a file /storage1/fs1/Active/LP6005120-DNA_B02.bam.

I did chmod 755 /storage1/fs1/Active/LP6005120-DNA_B02.bam before submitting the job that tries to access this file. It ran for the first time, but when I try to submit the same job again, I am getting error saying ERROR, cannot read /storage1/fs1/Active/LP6005120-DNA_B02.bam. How do I resolve this issue?