Unable to connect to RouterOS.

Error:
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exception 'Exception' with message 'Class RouterOS\Util could not be loaded from RouterOS/Util.php, file does not exist (registered paths="phar:///home/iligsoft/wol.iligsoft.hr/PEAR2_Net_RouterOS/PEAR2_Net_RouterOS-1.0.0b6.phar/PEAR2_Net_RouterOS-1.0.0b6/src") [PEAR2_Autoload-@PACKAGE_VERSION@]' in phar:///home/iligsoft/wol.iligsoft.hr/PEAR2_Net_RouterOS/PEAR2_Net_RouterOS-1.0.0b6.phar/PEAR2_Net_RouterOS-1.0.0b6/src/PEAR2/Autoload.php:305 Stack trace: #0 [internal function]: PEAR2\Autoload::load('RouterOS\\Util') #1 /home/iligsoft/wol.iligsoft.hr/index.php(24): spl_autoload_call('RouterOS\\Util') #2 {main}