Im getting fatal error while using BigBrother

Everytime when i run BigBrother with pocketmine i get this error
[17:50:14] [Server thread/INFO]: Loading pocketmine.yml...
[17:50:14] [Server thread/INFO]: Loading server properties...
[17:50:14] [Server thread/INFO]: Selected English (eng) as the base language
[17:50:14] [Server thread/INFO]: Starting Minecraft: PE server version v1.4.0
[17:50:14] [Server thread/NOTICE]: Online mode is enabled. The server will verif
y that players are authenticated to Xbox Live.
[17:50:14] [Server thread/NOTICE]: To disable authentication, set "xbox-auth" to
"false" in server.properties.
[17:50:14] [Server thread/INFO]: Opening server on 0.0.0.0:19132
[17:50:14] [Server thread/INFO]: This server is running PocketMine-MP version 1.
7dev-1001 "[REDACTED]" (API 3.0.0-ALPHA12)
[17:50:14] [Server thread/INFO]: PocketMine-MP is distributed under the LGPL Lic
ense
[17:50:14] [Server thread/INFO]: Loading resource packs...
[17:50:14] [Server thread/INFO]: Loading DevTools v1.12.10
[17:50:14] [Server thread/INFO]: Enabling DevTools v1.12.10
[17:50:14] [Server thread/INFO]: Loading source plugin BigBrother v1.6.0-beta
[17:50:14] [Server thread/INFO]: [DevTools] Registered folder plugin loader
[17:50:14] [Server thread/INFO]: Enabling BigBrother v1.6.0-beta
[17:50:14] [Server thread/INFO]: [BigBrother] OS: Windows NT SHAHRUKHFAROOQ 6.1
build 7601 (Windows 7 Home Premium Edition Service Pack 1) AMD64
[17:50:14] [Server thread/INFO]: [BigBrother] PHP version: 7.2.5
[17:50:14] [Server thread/INFO]: [BigBrother] PMMP version: 1.7dev-1001 [REDACTE
D]
[17:50:14] [Server thread/INFO]: [BigBrother] PMMP Server version: v1.4.0
[17:50:14] [Server thread/INFO]: [BigBrother] PMMP API version: 3.0.0-ALPHA12
[17:50:14] [Server thread/INFO]: [BigBrother] Use openssl as AES encryption engi
ne.
[17:50:14] [Server thread/INFO]: [BigBrother] Use openssl as RSA encryption engi
ne.
[17:50:14] [Server thread/INFO]: [BigBrother] OpenSSL Library version: OpenSSL 1
.1.0h 27 Mar 2018
[17:50:14] [Server thread/INFO]: [BigBrother] OpenSSL Header version: OpenSSL 1.
1.0h 27 Mar 2018
[17:50:14] [Server thread/INFO]: [BigBrother] Server is being started in the bac
kground
[17:50:14] [Server thread/INFO]: [BigBrother] Generating keypair
[17:50:15] [Server thread/INFO]: [BigBrother] Starting Minecraft: PC server on *
:25565 version 1.12.2

Fatal error: Declaration of shoghicp\BigBrother\network\ProtocolInterface:roce
ss(): void must be compatible with pocketmine\network\SourceInterface:rocess()
: bool in C:\Users\Shahrukh Farooq\Desktop\PocketMine-MP-master\plugins\BigBroth
er-master\src\shoghicp\BigBrother\network\ProtocolInterface.php on line 71
[17:50:15] [Server thread/EMERGENCY]: An unrecoverable error has occurred and th
e server has crashed. Creating a crash dump
[17:50:15] [Server thread/EMERGENCY]: Please upload the "C:\Users\Shahrukh Faroo
q\Desktop\PocketMine-MP-master\crashdumps/Wed_Jun_13-17.50.15-IST_2018.log" file
to the Crash Archive and submit the link to the Bug Reporting page. Give as muc
h info as you can.
[17:50:15] [Server thread/INFO]: Disabling DevTools v1.12.10
[17:50:15] [Server thread/INFO]: Disabling BigBrother v1.6.0-beta
Press any key to continue . . .

 

please report the author.

This is only for plugin error/crash stuff