Wpscan: undefined method `days' for 5:Fixnum

[AzizDammak]

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      \ \/  \/ / |  ___/ \___ \ / __|/ _` | '_ \ 
       \  /\  /  | |     ____) | (__| (_| | | | |
        \/  \/   |_|    |_____/ \___|\__,_|_| |_|

    WordPress Security Scanner by the WPScan Team 
                   Version 2.9.2
      Sponsored by Sucuri - https://sucuri.net

@_WPScan_, @ethicalhack3r, @erwan_lr, pvdl, @_FireFart_

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[!] undefined method `days' for 5:Fixnum

I get this error whenever I try to do anything with wpscan.. :/
looks like the other solutions here did not help. Could you guys help me fix that please?
Thanks.
@FireFart @ethicalhack3r

[FireFart]

@AzizDammak what's your ruby and gems version?

[AzizDammak]

@FireFart
root@aziz:~/Desktop/wpscan# ruby --version
ruby 2.3.1p112 (2016-04-26) [x86_64-linux-gnu]

[FireFart]

And your rubygems version?

[AzizDammak]

it is 2.5.1

[FireFart]

How did you install wpscan? Manually? If so please run a bundle update and see if this resolves the problem

[AzizDammak]

i tried to update, it was okay at first but then I got this error:
An error occurred while installing nokogiri (1.8.0), and Bundler cannot
continue.
Make sure that gem install nokogiri -v '1.8.0' succeeds before bundling.

tried to install it but i still get an error:

ERROR: Error installing nokogiri:
ERROR: Failed to build gem native extension.
(ruby-dev is already up to date)

[AzizDammak]

So lemme explain what I did before this happened:
when I try to update wpscan I get an error: Checksums do not match on LICENSE..
So I tried every solution I can find useful here but nothing worked..
So I thought why not delete the LICENSE from the list of the files in the db updater.. and then wpscan updated just fine (you could check the issue I just closed) ..
After that I tried to scan a website to see if wpscan works but it raised this error..

I would really appreciate any help. @FireFart
Thanks.

[FireFart]

So it seems you are missing some dependecies. You need to try to fix those first or use the docker image if you don't want to install those libraries by hand

[AzizDammak]

how do I install them by hand? That would be better for me really.

[FireFart]

@AzizDammak please refer to the readme

[AzizDammak]

yeah new error after installing the missing dependecies @FireFart .. here:

    __          _______   _____                  
    \ \        / /  __ \ / ____|                 
     \ \  /\  / /| |__) | (___   ___  __ _ _ __ ®
      \ \/  \/ / |  ___/ \___ \ / __|/ _` | '_ \ 
       \  /\  /  | |     ____) | (__| (_| | | | |
        \/  \/   |_|    |_____/ \___|\__,_|_| |_|

    WordPress Security Scanner by the WPScan Team 
                   Version 2.9.2
      Sponsored by Sucuri - https://sucuri.net

@_WPScan_, @ethicalhack3r, @erwan_lr, pvdl, @_FireFart_

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[i] Updating the Database ...
[!] timthumbs.txt: checksums do not match (local: 8debec08480d8dadf084b1bf94c40111c567daba2a1ec63d7be62cf6a1e9eec1e754f96c479452f4cec62bfba2cb7bc7b6de1182b61edebbb8470e6a0946e48a remote: fd47229ccc89dfc40887368c55d36a74c4c1242d82980f036f19a4be1a0fd2268a64c169bc9946b388ed3c444a055c62b1960e6c95f3919be952e0cec7a267fb)
[!] Downloaded File Content:
�%�MY�/oH$�ą߽�}U�Y�~�О�K�<���XTU������]vo����|"������}����;ί-�����dS�k�:ݷ�)=LsT�z���˽�$��p_7���Ez�:1r,19. �)�b�!4b괾=]�
�wgQ���B묩�z��-O�2N-�QV�*C�@zݢ���(Fr����P�_�灷�lE�&'Yj��95�>q�]�L{���;�L
��xl��m�H�[4Bє�1`K��{$��T������F�����1[q����>��Cv����J����h�m=��-yyH����g���^�kz̀Eb��yZ<�����hW��b��QZ�<���J�3�
k�O�:;��y0�<:Q
.........

[!] Some hints to help you with this issue:
[!] -) Try updating again
[!] -) If you see SSL/TLS related error messages you have to fix your local TLS setup
[!] -) Windows is still not supported

I just cant understand what causes this :(
btw im not using any proxies or anything... I used to have kali before (not even a month ago!!) and wpscan was working just fine but after i reinstalled the os everything went wrong with wpscan..

[FireFart]

@AzizDammak I suggest to use the docker version

[AzizDammak]

@FireFart Thnx!! <3 The docker version works very well now :dancing_men: I apreciate your help
Just one annoying thing that it asks me to update the database everytime it starts but it works just fine.