Please tell me how to fix it
"Error 28 from storage engine" means "not enough disk space." Are you on shared, VPS, or dedicated web hosting?
Add Pages to Vanilla with the Basic Pages app
@Shadowdare I'm using linux shared host
You should contact your web host to have them look into it. I guess their server's /tmp/ directory might be full.
@Shadowdare ok. thanks for help me