After polling devices i get the following error

After polling devices i get the following error..

 

Created directory : /opt/observium/rrd/10.0.0.10 o Device status        Device is reachable by PING (0.348ms) and SNMP (30.60ms)

    ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣠⡶⠋⠁⠙⣦⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⣠⡶⠛⠛⠲⣤⣀⠀⠀⠀⠀⡀⠀⠀⠀⠀⠀⠀⠀⣠⠄⣠⣾⣡⠀⠀⠀⠀⠸⡆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⢰⡏⠀⠀⠀⠀⠈⣿⣷⣤⡐⣄⣽⡾⠧⠤⠤⣤⣤⣾⣿⣾⣿⣯⣀⡀⠀⠀⠀⢠⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⢷⡀⠀⠀⠀⠀⣿⣿⣿⣿⣿⣯⣤⣤⡀⣠⣈⣹⣽⣿⣿⣿⣿⣷⣦⣄⠀⢀⡾⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠈⠻⣆⠀⠀⠀⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡟⠀⣠⠞⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠈⢳⣆⠘⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣧⣾⣷⣶⣤⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⣘⣿⣿⣿⣿⣿⣟⣿⣿⣿⣿⣿⣿⣿⣿⢡⡼⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⣾⣿⣿⣿⣿⣿⡏⣯⡇⣿⣿⣿⡏⣿⣿⣿⣜⣛⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡷⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⣿⣿⣿⣿⣿⣿⣿⣭⣾⣿⣿⣿⣇⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠃⠀⠘⢷⣄⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⢠⣿⣿⡏⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡏⢿⣿⣿⡿⠁⠀⠀⠀⠸⣿⣷⡀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⢸⣿⣿⡇⠈⢻⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠻⣿⣿⡟⢠⣿⣿⡟⠁⠀⠀⠀⠀⠙⣻⣿⣿⣆⠀⠀⠀⠀⠀
⠀⠀⠀⠈⣿⣿⣷⡈⠛⠿⣿⣿⡆⠻⢿⣿⣽⣿⣯⣿⠿⠃⠀⠻⠛⣰⣿⣿⠏⠀⠀⠀⠀⢀⣙⣿⣿⣿⣿⣿⣧⡀⠀⠀⠀
⠀⠀⠀⠀⢿⠈⠙⠻⠷⠤⠄⢉⡁⠀⠀⠙⢉⣵⣌⠀⠀⠀⣀⠄⠘⠛⠋⠁⢀⣀⣤⣤⣭⣭⣽⣿⣿⣿⣿⣿⣿⣷⡀⠀⠀
⠀⠀⠀⢀⣿⡄⠀⠀⠀⠀⠀⠀⠉⠓⢦⣄⡉⠉⢉⣩⠶⠋⠁⠀⠀⠀⣠⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⡀⠀
⠀⠀⠀⣼⣿⣿⣷⣶⣶⣆⣀⡀⠀⠀⠀⠀⠉⠉⠉⠀⠀⠀⠀⠀⣠⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣧⠀
⠀⠀⠀⣿⣿⣿⣿⣿⣿⣿⣥⣄⡀⠀⠀⠀⠀⠀⠀⠀⠀⣸⣦⣾⣿⣿⣿⣿⣿⣿⡿⠿⠿⡟⠿⣿⣟⡿⢿⡛⠀⣘⣿⣿⡆
⠀⠀⠀⢿⣿⣿⠿⠿⠿⠿⢿⣿⣿⣷⣿⡆⠀⠀⣶⣶⣾⡿⠛⠛⠛⠛⠻⣿⣿⣿⡟⠉⠀⠀⠀⠈⠁⠁⢀⢀⠲⣬⣿⣿⡇
⠀⠀⠀⠘⡏⠳⣤⡄⠀⡄⠀⠀⠈⠙⢿⣧⠀⢀⣿⣿⠏⠀⠀⠀⠀⢀⣠⣿⣿⠋⠀⠀⠀⠀⠀⠀⠀⠀⠈⣯⣷⣿⣿⣿⡇
⠀⠀⠀⠀⢿⠀⠀⠉⠳⣇⠀⠀⠀⠀⠀⢻⠀⢸⣿⣿⣆⢠⠀⡆⣰⡿⠟⠉⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⡾⣿⣿⣿⣿⣿⡇
⠀⠀⠀⠀⠘⣧⠀⠀⠀⠹⣷⣤⣄⠀⡈⣾⡆⢸⡿⠋⠿⠾⠴⠷⠋⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣠⠞⠉⣶⣾⣿⣿⣿⣿⠀
⠀⠀⠀⠀⠀⠈⠳⣄⠀⠀⠀⠉⠻⣿⣿⣿⣇⠸⡷⠀⠀⠀⢀⣠⢄⣠⣶⣤⣤⣤⡤⠤⠖⠛⠉⠀⠠⣤⣼⣿⣿⣿⣿⡏⠀
⠀⠀⠀⠀⠀⠀⠀⠉⢻⣷⠶⠒⠀⠀⠁⠈⢿⡄⣷⣆⣤⣶⡿⠛⠛⠛⠉⠉⠉⠁⠀⠀⠀⠀⠀⠀⠀⠈⢿⣿⣿⣿⣿⠇⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠘⣏⠀⠀⠀⠀⠀⠀⠘⣧⣿⣿⡿⢋⡤⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠰⣾⣿⣿⣿⣿⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⢻⡄⠀⠀⠀⠀⠀⠀⢸⣿⣿⣶⣫⠆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡀⢦⣵⣿⣿⣿⣿⠇⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢻⣆⠀⠀⠀⠀⠀⠀⣿⣿⣿⠇⠀⣀⠀⠀⠀⠀⠀⠀⠀⠀⠳⠦⣴⣿⣶⣿⣿⣿⣿⡿⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠛⢷⣄⠀⠀⠀⠀⢹⣿⣿⣾⣿⣋⣤⡄⠀⠀⠀⠀⠀⠀⠀⠠⣈⠻⣿⣿⣿⣿⣿⡇⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠉⠛⣦⣤⣤⣾⣿⣿⣿⣿⣿⣯⡴⠂⣀⡀⠀⡀⡀⡀⢠⣬⣻⣿⣿⣿⣿⡿⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⢀⣀⣀⣀⣀⣠⡴⠊⠉⠀⠈⢹⠿⣿⣿⣿⣿⣿⣷⣾⣿⠾⡿⡿⠿⣷⣦⣿⣿⣿⣿⣿⡟⠁⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠛⠷⠦⠤⠤⠴⠶⠶⠶⠶⠚⠉⠀⠀⠈⣉⣩⠽⠟⠋⠁⠀⠀⣁⣠⠿⠛⠋⠉⠉⠉⠁⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠉⠉⠉⠉⠉⠉⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
Oops! Something went wrong! You may want to report this to the Observium developers.

fclose(): Argument #1 ($stream) must be of type resource, bool given in /opt/observium/includes/common.inc.php:626

Stack trace:

#0: (unknown function) called at [/opt/observium/includes/common.inc.php:626]
621: } else {
622: $fd = fopen($filename, 'wb');
623: // Check writable file (only after creation for speedup)
624: if (!is_writable($filename))

{ 625: print_debug("Log file '$filename' is not writable or not created."); 626: fclose($fd); 627: return FALSE; 628: }

629: }
630:
631: //$string = '[' . date('Y/m/d H:i:s O') . '] ' . basename($argv[0]) . '(' . getmypid() . '): ' . trim($string) . PHP_EOL;

#1: fclose called at [/opt/observium/includes/common.inc.php:626]
621: } else {
622: $fd = fopen($filename, 'wb');
623: // Check writable file (only after creation for speedup)
624: if (!is_writable($filename))

{ 625: print_debug("Log file '$filename' is not writable or not created."); 626: fclose($fd); 627: return FALSE; 628: }

629: }
630:
631: //$string = '[' . date('Y/m/d H:i:s O') . '] ' . basename($argv[0]) . '(' . getmypid() . '): ' . trim($string) . PHP_EOL;

#2: logfile called at [/opt/observium/includes/rrdtool.inc.php:342]
337: $exec_status['runtime'] = $runtime;
338:
339: // Check rrdtool's output for the command.
340: if (str_contains($stdout, 'ERROR')) {
341: if (isset($config['rrd']['debug']) && $config['rrd']['debug'])

{ 342: logfile('rrd.log', "RRD $stdout, CMD: $cmd"); 343: }

344: } else

{ 345: $GLOBALS['rrd_status']   = TRUE; 346: $exec_status['exitcode'] = 0; 347: }

#3: rrdtool called at [/opt/observium/includes/rrdtool.inc.php:593]
588: // Create DS string to pass on the command line
589: $ds[] = "DS:$name:" . $def['type'] . ':' . $def['heartbeat'] . ':' . $def['min'] . ':' . $def['max'];
590: }
591:
592:
593: return rrdtool('create', $fsfilename, implode(' ', $ds) . " --step $step $rra");
594:
595: }
596:
597: /**
598: * Updates an rrd database at $filename using $options

#4: rrdtool_create_ng called at [/opt/observium/includes/rrdtool.inc.php:637]
632:
633: $fsfilename = get_rrd_path($device, $filename);
634:
635: // Create the file if missing (if we have permission to create it)
636: if ($create)

{ 637: rrdtool_create_ng($device, $type, $index, $options); 638: }

639: // Update DSes when requested
640: if (isset($options['update_max']) || isset($options['update_min']))

{ 641: print_debug_vars($options); 642: rrdtool_update_ds($device, $type, $index, $options); #5: rrdtool_update_ng called at [/opt/observium/includes/polling/functions.inc.php:212] 207: log_event('Device status changed to Down (' . $device['status_type'] . ' -> ' . $status_type . ')', $device, 'device', $device['device_id'], 3); 208: }

209: $device['status_type'] = $status_type;
210: }
211:
212: rrdtool_update_ng($device, 'status', ['status' => $status]);
213: //print_vars(rrdtool_export_ng($device, 'status'));
214:
215: if (!$attribs['ping_skip'])

{ 216: // Ping response RRD database. 217: rrdtool_update_ng($device, 'ping', ['ping' => ($device['status_pingable'] ?: 'U')]); #6: poll_device called at [/opt/observium/poller.php:175] 170: $params[] = $config['poller_id']; 171: }

172:
173: foreach (dbFetch($query, $params) as $device)

{ 174: $device = dbFetchRow("SELECT * FROM `devices` WHERE `device_id` = ?", [$device['device_id']]); 175: poll_device($device, $options); 176: $polled_devices++; 177: }

178:
179: $poller_end  = utime();
180: $poller_run  = $poller_end - $poller_start;

Can someone help ?