System.NullReferenceException: Object reference not set to an instance of an object

[DieselTech]

What happened?

Scan triggered last night at 00:00, 1300+ entries of this error was in the logs after that.

What did you expect?

.

Kavita Version Number - If you don not see your version number listed, please update Kavita and see if your issue still persists.

Nightly Testing Branch

What operating system is Kavita being hosted from?

None

If the issue is being seen on Desktop, what OS are you running where you see the issue?

None

If the issue is being seen in the UI, what browsers are you seeing the problem on?

No response

If the issue is being seen on Mobile, what OS are you running where you see the issue?

None

If the issue is being seen on the Mobile UI, what browsers are you seeing the problem on?

No response

Relevant log output

[Kavita] [2024-11-03 00:43:54.557 -04:00  53] [Debug] API.Services.Tasks.ScannerService [TIME] Kavita took 6 ms to process Black Hammer '45
[Kavita] [2024-11-03 00:43:54.557 -04:00  53] [Information] API.Services.Tasks.Scanner.ProcessSeries [ScannerService] Beginning series update on American Splendor Special: A Step out of the Nest, Forced: false
[Kavita] [2024-11-03 00:43:54.562 -04:00  53] [Information] API.Services.Tasks.Scanner.ProcessSeries [ScannerService] Processing series American Splendor Special: A Step out of the Nest with 1 files
[Kavita] [2024-11-03 00:43:54.562 -04:00  53] [Error] API.Services.Tasks.Scanner.ProcessSeries [ScannerService] There was an exception updating series for American Splendor Special: A Step out of the Nest
System.NullReferenceException: Object reference not set to an instance of an object.
   at System.Globalization.NumberFormatInfo.InitializeInvariantAndNegativeSignFlags()
   at System.Globalization.CultureInfo.GetFormat(Type formatType)
   at System.Globalization.NumberFormatInfo.get_CurrentInfo()
   at API.Entities.Volume.GetNumberTitle() in /home/runner/work/Kavita/Kavita/API/Entities/Volume.cs:line 72
   at API.Services.Tasks.Scanner.ProcessSeries.UpdateVolumes(Series series, IList`1 parsedInfos, Boolean forceUpdate) in /home/runner/work/Kavita/Kavita/API/Services/Tasks/Scanner/ProcessSeries.cs:line 621
   at API.Services.Tasks.Scanner.ProcessSeries.ProcessSeriesAsync(IList`1 parsedInfos, Library library, Int32 totalToProcess, Boolean forceUpdate) in /home/runner/work/Kavita/Kavita/API/Services/Tasks/Scanner/ProcessSeries.cs:line 118

Additional Notes

Filename: American Splendor Special A Step out of the Nest 001 (1994).cbz
The Comicinfo.xml from that specific file mentioned in the logs above is here:

<?xml version="1.0"?>
<ComicInfo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Series>American Splendor Special: A Step out of the Nest</Series>
  <Number>1</Number>
  <Volume>1</Volume>
  <Summary>He's stared into the Monkeycam and lived to tell about it! Critically-acclaimed comics writer Harvey Pekar returns to the racks with his first 32-page comics story ever. It chronicles Harvey's adventures in New York City last spring as he's invited to appear on "Late Night with David Letterman" after a four year hiatus - only to be bumped at the last minute by Barry Manilow! Will the fists start flying? This special stand-alone storyline is full of the gentle wisdom and understated irony for which Pekar is renown.</Summary>
  <Notes>Tagged with the ninjas.walk.alone fork of ComicTagger 1.3.4 using info from Comic Vine on 2021-05-26 00:27:28.  [Issue ID 227415]</Notes>
  <Year>1994</Year>
  <Month>08</Month>
  <Day>01</Day>
  <Writer>Harvey Pekar</Writer>
  <Penciller>Joe Zabel</Penciller>
  <Inker>Joe Zabel</Inker>
  <Letterer>Gary Dumm</Letterer>
  <CoverArtist>Joe Zabel</CoverArtist>
  <Editor>Diana Schutz</Editor>
  <Publisher>Dark Horse Comics</Publisher>
  <Web>https://comicvine.gamespot.com/american-splendor-special-a-step-out-of-the-nest-1/4000-227415/</Web>
  <PageCount>37</PageCount>
  <Characters>Barry Manilow, David Letterman, Harvey Pekar, Joyce Brabner, Paul Shaffer, Sarah Jessica Parker</Characters>
  <Locations>Cleveland, New York City</Locations>
  <Pages>
    <Page Image="0" Type="FrontCover" ImageSize="441304" />
    <Page Image="1" ImageSize="497305" />
    <Page Image="2" ImageSize="388095" />
    <Page Image="3" ImageSize="417110" />
    <Page Image="4" ImageSize="406658" />
    <Page Image="5" ImageSize="410366" />
    <Page Image="6" ImageSize="437676" />
    <Page Image="7" ImageSize="409259" />
    <Page Image="8" ImageSize="447014" />
    <Page Image="9" ImageSize="426215" />
    <Page Image="10" ImageSize="380415" />
    <Page Image="11" ImageSize="366664" />
    <Page Image="12" ImageSize="369754" />
    <Page Image="13" ImageSize="395490" />
    <Page Image="14" ImageSize="408952" />
    <Page Image="15" ImageSize="432642" />
    <Page Image="16" ImageSize="408423" />
    <Page Image="17" ImageSize="409082" />
    <Page Image="18" ImageSize="423395" />
    <Page Image="19" ImageSize="450394" />
    <Page Image="20" ImageSize="455332" />
    <Page Image="21" ImageSize="443729" />
    <Page Image="22" ImageSize="437819" />
    <Page Image="23" ImageSize="406612" />
    <Page Image="24" ImageSize="411781" />
    <Page Image="25" ImageSize="439107" />
    <Page Image="26" ImageSize="424447" />
    <Page Image="27" ImageSize="413124" />
    <Page Image="28" ImageSize="400069" />
    <Page Image="29" ImageSize="428286" />
    <Page Image="30" ImageSize="424647" />
    <Page Image="31" ImageSize="387085" />
    <Page Image="32" ImageSize="418822" />
    <Page Image="33" ImageSize="422237" />
    <Page Image="34" ImageSize="377172" />
    <Page Image="35" ImageSize="479389" />
    <Page Image="36" ImageSize="132681" />
  </Pages>
</ComicInfo>

[majora2007]

Not sure how to reproduce. I put this xml on my system and no issues at all. The code in question is just turning a float into a string.