struct2 2.3.34 upgrade 6.7.0,all page show messy code

[wwyyzz_001]

Dear Lukasz,

My project from struct2 2.3.34 upgrade 6.7.0,all page show messy 
code,normal is chinese,as shown in the attached figure.

May I ask if there are any additional configurations needed?

Thank you.

Regards
wwyyzz