trouble with stunnel over openVPN for android [log attached]

[fiswany 0]

hi everybody,

 

i am using stunnel over open VPN for android, sometime when i go to apply ssl file it goes fine others i got the below log :

 

$ stunnel AirVPN_GB-Manchester_Asterope_SSL-443.ssl
[ ] Clients allowed=500
[.] stunnel 5.44 on aarch64-unknown-linux-android platform
[.] Compiled with OpenSSL 1.0.2m  2 Nov 2017
[.] Running  with OpenSSL 1.0.2n  7 Dec 2017
[.] Threading:PTHREAD Sockets:POLL,IPv6 TLS:ENGINE,OCSP,PSK,SNI
[ ] errno: (*__errno())
[.] Reading configuration from file /storage/emulated/0/Download/OVPN/AirVPN-Android/AirVPN_GB-Manchester_Asterope_SSL-443.ssl
[.] UTF-8 byte order mark not detected
[ ] PRNG seeded successfully
[ ] Initializing service [openvpn]
[ ] Ciphers: HIGH:!DH:!aNULL:!SSLv2
[ ] TLS options: 0x03000004 (+0x03000000, -0x00000000)
[ ] No certificate or private key specified
[.] Configuration successful
[ ] Binding service [openvpn]
[ ] Listening file descriptor created (FD=6)
[ ] Option SO_REUSEADDR set on accept socket
[!] bind: Address already in use (98)
[!] Error binding service [openvpn] to 127.0.0.1:1413
[ ] Unbinding service [openvpn]
[ ] Service [openvpn] closed

 

of course its not related to a particular server it could happen with any & sometimes when i restart the phone its applied correctly.

any idea or suggestion will be appreciated.