[ERROR: An error has occurred when reading existing sub-variable "parameterName"; see cause exception! The type of the containing value was: extended_hash+string (org.springframework.security.web.csrf.CsrfTokenRequestAttributeHandler$SupplierCsrfToken wrapped into f.e.b.GenericObjectModel)

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FTL stack trace ("~" means nesting-related):
	- Failed at: ${_csrf.parameterName} auto-escaped  [in template "1/default/inc_header.html" at line 253, column 32]
	- Reached through: #include "inc_header.html"  [in template "1/default/sys_message_board.html" at line 16, column 1]
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