Error at opening 198 sdlxliff files in one go

In Studio 2017, when I open 198 small files (some of them containing a single word) of a project, before the files are displayed as expexcted, this error message keeps popping up:

<?xml version="1.0"?>
<SDLErrorDetails time="27-2-2018 16:40:32">
<ErrorMessage>De verzameling is gewijzigd. Mogelijk wordt de inventarisatiebewerking niet uitgevoerd.</ErrorMessage>
<Exception>
<Type>System.InvalidOperationException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
<HelpLink/>
<Source>mscorlib</Source>
<HResult>-2146233079</HResult>
<StackTrace>
<![CDATA[]]>
</StackTrace>
</Exception>
<Environment>
<ProductName>SDL Trados Studio</ProductName>
<ProductVersion>14.0.0.0</ProductVersion>
<EntryAssemblyFileVersion>14.0.5889.5</EntryAssemblyFileVersion>
<OperatingSystem>Microsoft Windows 10 Pro</OperatingSystem>
<ServicePack>NULL</ServicePack>
<OperatingSystemLanguage>1043</OperatingSystemLanguage>
<CodePage>1252</CodePage>
<LoggedOnUser>#########</LoggedOnUser>
<DotNetFrameWork>4.0.30319.42000</DotNetFrameWork>
<ComputerName>#########</ComputerName>
<ConnectedToNetwork>True</ConnectedToNetwork>
<PhysicalMemory>16656628 MB</PhysicalMemory>
</Environment>
</SDLErrorDetails>

 

How can I avoid this error?