Line-length exception....

Hi all, I've done a ton of reading and watched videos but I cant figure this out, So I joined the forums for some pobbile help! 
Right this is where im at...

I've got a Musicoin wallet .json file I cannot remember the password to.

I ran the file through the ethereum2john.py script and it spat out my hash. 

I shows the first part as $ethereum$s*262144*8*1* so I think this is a SCRYPT v3 which is gpu resistant.

I think I roughly know the password so was hoping to use a mask to help solve it.

I wanted to start out buy running a standard dictionary attack at it to see if hashcat worked and I got this....

C:\hashcat>hashcat64 -m 15700 -a 0 -w 3 .\hashes\music.txt .\wordlists\john.txt
hashcat (v4.0.1) starting...

* Device #2: Not a native Intel OpenCL runtime. Expect massive speed loss.
             You can use --force to override, but do not report related errors.
OpenCL Platform #1: Advanced Micro Devices, Inc.
================================================
* Device #1: Ellesmere, 3840/4096 MB allocatable, 32MCU
* Device #2: Intel(R) Core(TM) i7 CPU         920  @ 2.67GHz, skipped.

Hashfile '.\hashes\music.txt' on line 1 ( ■$): Line-length exception
Hashfile '.\hashes\music.txt' on line 2 (): Line-length exception
Hashfile '.\hashes\music.txt' on line 3 (): Line-length exception
Hashfile '.\hashes\music.txt' on line 4 (): Line-length exception
No hashes loaded.

Started: Mon Jan 15 19:23:57 2018
Stopped: Mon Jan 15 19:23:57 2018


any pointer would be great.

onis