Steps to reproduce:

1. Importing new screen with ansible

It seems with the latest change on DB.php (https://github.com/zabbix/zabbix/commit/40bb7aa69bf18c100c9db161fca21a4757f2a5a9#diff-7b852ee5eea1d341f631e6081241cded9a8644b43a69640f24aff27f3aa2f02cR431-R433) will change the value of $values['name'] to NULL.

I didn't get any relation between referenced $value and value of $values. But the following statement will fix the issue (by refactoring ternary if).

if(array_key_exists('default', $table_schema['fields'][$field])) {
   $value = $table_schema['fields'][$field]['default']; 
}

Result:

Field \"name\" cannot be set to NULL.
Expected:
Import without any error