Hi,
I got a problem when I configure my email options.
When I select smtp (for the deliver mail) this error message appear “an error occured”
do you have a solution ?
Thank in advance
someone have a solution ? 
When you get “an error occured” do you get any information in your logs/librenms.log file ?
Can you change any other setting in that page, is it just the “From” field?
in my log there is nothing
only this message
/opt/librenms/discovery.php new 2019-09-26 10:50:02 - 0 devices discovered in 0.000 secs
and if I change something the error doesn’t disappear
So you get “An error occured” by changing any setting in the GUI ?
try run these
chown -R librenms:librenms /opt/librenms
./daily.sh
not any setting I click on “how to deliver mail” and select “smtp”, an error message appear “An error occurred.”
I did but the problem still
Check your javascript console if any more info, on chrome right click -> inspect -> Console, refresh page and try again and watch to see if any errors when you get “an error occured”.
perfect 
What is your base URL set to in config.php? try the default $config['base_url'] = "/";
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yes it’s “/”
config.php
<?php ## Have a look in defaults.inc.php for examples of settings you can set here. DO NOT EDIT defaults.inc.php! ### Database config $config['db_host'] = 'localhost'; $config['db_port'] = '3306'; $config['db_user'] = 'librenms'; $config['db_pass'] = '********'; $config['db_name'] = 'librenms'; $config['db_socket'] = ''; // This is the user LibreNMS will run as //Please ensure this user is created and has the correct permissions to your install $config['user'] = 'librenms'; ### Locations - it is recommended to keep the default #$config['install_dir'] = "/opt/librenms"; ### This should *only* be set if you want to *force* a particular hostname/port ### It will prevent the web interface being usable form any other hostname #$config['base_url'] = "/"; ### Enable this to use rrdcached. Be sure rrd_dir is within the rrdcached dir ### and that your web server has permission to talk to rrdcached. #$config['rrdcached'] = "unix:/var/run/rrdcached.sock"; ### Default community $config['snmp']['community'] = array("public"); ### Authentication Model $config['auth_mechanism'] = "mysql"; # default, other options: ldap, http-auth #$config['http_auth_guest'] = "guest"; # remember to configure this user if you use http-auth ### List of RFC1918 networks to allow scanning-based discovery #$config['nets'][] = "10.0.0.0/8"; #$config['nets'][] = "172.16.0.0/12"; #$config['nets'][] = "192.168.0.0/16";ok problem solved, it’s because I forgot to uncomment
#$config[‘base_url’] = “/”;
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Good stuff
for info related - Web UI not writable with admin account - #20 by Cora
thank you for the support
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