Morning guys.  Woke up this morning to check my wallet and it wont open.

Can't copy and past from the error but i'll type it out.

Assertion Failed
Programd *****\bitcoin-qt.exe
File:table/table_builder.cc
Expression:r->options.comparator->Compare(key, Slice(r->last_key))>0

than it has the usual C++ "retry to debug) info.


what is it? and how do I fix it?