update joomla 3.8.1 error

i now update joomla 3.8.1 and test new module Page Builder CK and new images it error column load Control Panel joomla to display

how to fix
Thank You

Sorry i'm not good at english

update!

i save it but error in module
0 - Error decoding JSON data: Syntax error

and see web it error

udate!
i reinstall version Page Builder CK 1.5.7 to 1.5.6 it ok
but
1.module it error 0 - Error decoding JSON data: Syntax error . i close module Status unpublished it ok
2. i test new module Page Builder CK it ok

Thank You

Hi
I'm working on.
please try to downgrade to he 1.5.6 and tell me if the admin page error is gone
www.dropbox.com/s/z5ycyt7x7ix4n1m/com_pa...derck_1.5.6.zip?dl=0
CEd

The error's gone with the downgrade! Thank's for your help!

great
it shall be fixed in the 1.5.8