いつもお世話になっております。
ありがとうございます。
内部エラーが出てRppmanがあけれません。
対策を教えてください。

Version:010510版
System.FormatException: 入力文字列の形式が正しくありません。
場所 System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
場所 System.Number.ParseDecimal(String value, NumberStyles options, NumberFormatInfo numfmt)
場所 RPPMAN.Models.C医薬品マスター..ctor(改定 改定, String[] fields)
場所 RPPMAN.Models.C医薬品マスター.医薬品マスターCSV読み込み()
場所 RPPMAN.Models.C医薬品マスター.<>c.b__113_0()
場所 System.Threading.ThreadHelper.ThreadStart_Context(Object state)
場所 System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
場所 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
場所 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
場所 System.Threading.ThreadHelper.ThreadStart()

mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
RPPMAN, Version=2.99.7069.29090, Culture=neutral, PublicKeyToken=null
System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
GalaSoft.MvvmLight, Version=5.3.0.19038, Culture=neutral, PublicKeyToken=0e453835af4ee6ce
System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
System.Xaml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
SimpleInjector, Version=3.2.2.0, Culture=neutral, PublicKeyToken=984cb50dea722e99
System.Runtime, Version=2.6.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
RPPLib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
Microsoft.Practices.ServiceLocation, Version=1.3.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
mscorlib.resources, Version=4.0.0.0, Culture=ja, PublicKeyToken=b77a5c561934e089
Anonymously Hosted DynamicMethods Assembly, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null
SimpleInjector.Compiled, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null
PresentationFramework.Aero2, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
System.Threading.Tasks, Version=2.6.10.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
Microsoft.Threading.Tasks, Version=1.0.12.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
PresentationFramework-SystemXml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
PresentationCore.resources, Version=4.0.0.0, Culture=ja, PublicKeyToken=31bf3856ad364e35
UIAutomationTypes, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
System.Deployment, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Deployment.resources, Version=4.0.0.0, Culture=ja, PublicKeyToken=b03f5f7f11d50a3a
Microsoft.VisualBasic, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.Data.resources, Version=4.0.0.0, Culture=ja, PublicKeyToken=b77a5c561934e089
System.Transactions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.EnterpriseServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a