в guards[] у customer смени драйвер на session.
и добавь апи для него
'guards' => [
'web' => [
'driver' => 'session',
'provider' => 'users',
],
'api' => [
'driver' => 'token',
'provider' => 'users',
'hash' => false,
],
'customers' => [
'driver' => 'session',
'provider' => 'customers',
'hash' => false,
],
'customer-api' => [
'driver' => 'token',
'provider' => 'customers',
'hash' => false,
],
],
