I am stuck with this error in newsletter plugin, please help me to fix this.
Notice: Undefined index: noconfirmation in C:\Inetpub\vhosts\wazzam.com\fleur.wazzam.com\wp-content\plugins\newsletter\subscription\subscription.php on line 191
Notice: Undefined index: nn in C:\Inetpub\vhosts\wazzam.com\fleur.wazzam.com\wp-content\plugins\newsletter\subscription\subscription.php on line 227
Notice: Undefined index: ns in C:\Inetpub\vhosts\wazzam.com\fleur.wazzam.com\wp-content\plugins\newsletter\subscription\subscription.php on line 230
Notice: Undefined index: nr in C:\Inetpub\vhosts\wazzam.com\fleur.wazzam.com\wp-content\plugins\newsletter\subscription\subscription.php on line 237
Notice: Undefined index: nl in C:\Inetpub\vhosts\wazzam.com\fleur.wazzam.com\wp-content\plugins\newsletter\subscription\subscription.php on line 250
Notice: Undefined index: confirmation_message_text in C:\Inetpub\vhosts\wazzam.com\fleur.wazzam.com\wp-content\plugins\newsletter\subscription\subscription.php on line 307
Notice: Undefined variable: params in C:\Inetpub\vhosts\wazzam.com\fleur.wazzam.com\wp-content\plugins\newsletter\subscription\subscription.php on line 495
Warning: Cannot modify header information – headers already sent by (output started at C:\Inetpub\vhosts\wazzam.com\fleur.wazzam.com\wp-content\plugins\newsletter\subscription\subscription.php:191) inC:\Inetpub\vhosts\wazzam.com\fleur.wazzam.com\wp-content\plugins\newsletter\subscription\subscription.php on line 495