Res_crypto / tls certificate issues

I just installed asterisk 15.2 and I am having res_crypto / tls certificate issues. I generated the ca and certificates with the ast_tls_cert script per the tls guide. I am receiving res_crypto.c:261 try_load_key: Key ‘ca’ is not expected size when I start asterisk. Not sure what is going on since I followed instructions to the word. Any help would be appreciated.