Error using mbedtls_x509_crt_parse

mbedtls 사용시에 mbedtls_x509_crt_parse() 함수 호출 시에 ret = mbedtls_x509_crt_parse(&cacert, (const unsigned char *)mbedtls_m2mqtt_srv_crt, mbedtls_m2mqtt_srv_crt_len ); ... And I get an error -9774. Could you help me to understand why the first certificate works, and the other doesn’t? Thank you, Mattia https://forums.mbed.com/t/error-using-mbedtls-x509-crt-parse/4164 Error using mbedtls_x509_crt_parse..