Getting /dev/tpm0: Device or resource busy error when trying to write data to nv slot using ESAPI Esys_NV_Write function

[vamseekrishna25]

ERROR:tcti:src/tss2-tcti/tcti-device.c:447:Tss2_Tcti_Device_Init() Failed to open device file /dev/tpm0: Device or resource busy
WARNING:tcti:src/tss2-tcti/tctildr.c:79:tcti_from_init() TCTI init for function 0x7f3ae4ae6ca0 failed with a000a
WARNING:tcti:src/tss2-tcti/tctildr.c:109:tcti_from_info() Could not initialize TCTI named: tcti-device
ERROR:tcti:src/tss2-tcti/tctildr-dl.c:150:tcti_from_file() Could not initialize TCTI file: libtss2-tcti-default.so

what does this error means ? and how to fix it ?
need help regarding above

tpm-tss library rpm verison is tpm2-tss-2.3.2-4.el8.x86_64
OS is RHEL 8.6