Asterisk Playback File Not Exist

Dear,
All Viewers I am facing with playing IVR I have file in the directory & also give permission but its showing in CLI this error.

-- Executing [923455210087@simpro:1] Ringing("SIP/simpro-00000007", "") in new stack
-- Executing [923455210087@simpro:2] Playback("SIP/simpro-00000007", "thanks-for-using") in new stack

[Jan 20 16:51:06] WARNING[6605]: file.c:653 ast_openstream_full: File thanks-for-using does not exist in any format
[Jan 20 16:51:06] WARNING[6605]: file.c:959 ast_streamfile: Unable to open thanks-for-using (format 0x100 (g729)): Resource temporarily unavailable
[Jan 20 16:51:06] WARNING[6605]: app_playback.c:479 playback_exec: ast_streamfile failed on SIP/simpro-00000007 for thanks-for-using
– Executing [923455210087@simpro:3] BackGround(“SIP/simpro-00000007”, “thanks-for-using”) in new stack
[Jan 20 16:51:06] WARNING[6605]: file.c:653 ast_openstream_full: File thanks-for-using does not exist in any format
[Jan 20 16:51:06] WARNING[6605]: file.c:959 ast_streamfile: Unable to open thanks-for-using (format 0x100 (g729)): Resource temporarily unavailable
[Jan 20 16:51:06] WARNING[6605]: pbx.c:9580 pbx_builtin_background: ast_streamfile failed on SIP/simpro-00000007 for thanks-for-using
– Executing [923455210087@simpro:4] Hangup(“SIP/simpro-00000007”, “”) in new stack
== Spawn extension (simpro, 923455210087, 4) exited non-zero on ‘SIP/simpro-00000007’

it’s showing that file does not exist even I use full directory path is returning same error, is there anywhere to check which directory asterisk searching for sound files, or anyone can suggest how to fix it?

/var/lib/asterisk/sounds// and /var/lib/asterisk/sounds/

then why I am getting this error? even file exists in the directory. can you please help me?

All we can do is ask more questions to try and find out where the problem lies.

What is the extension (case sensitive) on the file that that you intend Asterisk to play, or transcode and play, to your G.729 channel?

What does the file command say when you run it on that file?

What user is asterisk running as?

What are the permissions, user, and group, on the file, and all its superior directories?
Is SELINUX enabled, and if so, what are the tags on the file and all superior directories?