Can't Import Character anymore Keeps on crashing everytime Urgent Fix 2021

Urgent UE4 keeps on crashing every time when i import my character mesh

LoginId:aaee409c44d5d07e443c4b817034a9f2
EpicAccountId:71b9cc4104e24241978445b287a51efb

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000000000000b0

UE4Editor_RLPlugin!FRLPluginModule::AutoSetup() [D:\UE_Release\4.26\RLPlugin\HostProject\Plugins\RLPlugin\Source\RLPlugin\Private\RLPlugin.cpp:872]
UE4Editor_RLPlugin!UCCFbxFactory::FactoryCreateFile() [D:\UE_Release\4.26\RLPlugin\HostProject\Plugins\RLPlugin\Source\RLPlugin\Private\CCFbxFactory.cpp:305]
UE4Editor_UnrealEd
UE4Editor_AssetTools
UE4Editor_AssetTools
UE4Editor_AssetTools
UE4Editor_ContentBrowserAssetDataSource
UE4Editor_ContentBrowserAssetDataSource
UE4Editor_ContentBrowserAssetDataSource
UE4Editor_ContentBrowserAssetDataSource
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_Slate
UE4Editor_ApplicationCore
UE4Editor_ApplicationCore
UE4Editor_ApplicationCore
UE4Editor_ApplicationCore
user32
user32
UE4Editor_ApplicationCore
UE4Editor
UE4Editor
UE4Editor
UE4Editor
UE4Editor
kernel32
ntdll

Most likely there’s a problem with your file