Doesn't dump page on Error 1001

[NHOrus]

For example, https://www.pixiv.net/member_illust.php?id=211815

Config:

[Network]
useproxy = False
proxyaddress = 
useragent = Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.124 Safari/537.36
userobots = True
timeout = 60
retry = 3
retrywait = 5

[Debug]
loglevel = DEBUG
enabledump = True
skipdumpfilter = 1004|1002
dumpmediumpage = False
dumptagsearchpage = False
debughttp = False

[IrfanView]
irfanviewpath = C:\Program Files (x86)\IrfanView
startirfanview = False
startirfanslide = False
createdownloadlists = True

[Settings]
filenameformat = %member_id%\%image_id% - %title%
filenamemangaformat = %member_id%\%image_id% - %title%_%page_index%
filenameinfoformat = %member_id%\%image_id% - %title%
avatarnameformat = 
downloadlistdirectory = .
uselist = False
processfromdb = False
overwrite = False
tagsseparator = ,
daylastupdated = 5
rootdirectory = E:\conf\pixiv
alwayscheckfilesize = False
checkupdatedlimit = 0
downloadavatar = True
createmangadir = False
usetagsasdir = False
useblacklisttags = False
usesuppresstags = False
tagslimit = -1
writeimageinfo = False
writeimagejson = False
datediff = 0
backupoldfile = False
writeugoirainfo = False
createugoira = True
deletezipfile = True
enableinfiniteloop = False
verifyimage = False
writeurlindescription = True
urlblacklistregex = 
urldumpfilename = url_list_%Y%m%d
dbpath = 
creategif = False
useblacklistmembers = False
createapng = False

[Pixiv]
numberofpage = 0
r18mode = False
dateformat = 

The page dump happened on previous, non-beta version.

[Nandaka]

looks like they change the error message from 'The user has either left pixiv, or the user ID does not exist.' to 'User has left pixiv or the user ID does not exist.'

This might be happening again if they change the message again, as I don't see any error status code in the page.

[NHOrus]

Just check that message <h2 class="error-title">An error has occurred.</h2> appears and dump as generic error, if not filtered out?

[Nandaka]

I think I can modify IsErrorExist() in https://github.com/Nandaka/PixivUtil2/blob/master/PixivModel.py#L140, but it will marked as1003