update: this cookie bug somehow fixed itself, after 2 days i can login again
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thanks for your suggestion mate
i still used 1.4.7.3
now upgrading to 1.5.2 in localhost first
for checking theme compatibility
then i will use the new version asap
cheers
i got the same problem
above solutions not worked
i didnt change anything at my back office, but suddenly i cannot login today
also tried clearing cookies and caches, still cant log in
please help..