[TYPO3] wa_printctrl / BE lost

[Járy Richárd]

Hi.

I have installed the wa_printctrl extension, and from that moment, my
backend login page is lost.

The error message is:


Warning: main(PATH_tslibclass.tslib_pibase.php): failed to open stream: No
such file or directory in
/var/www/typo3_src-3.8.1/typo3/ext/wa_printctrl/pi1/class.tx_waprintctrl_pi1
.php on line 31

Fatal error: main(): Failed opening required
'PATH_tslibclass.tslib_pibase.php'
(include_path='.:/usr/share/php:/usr/share/pear') in
/var/www/typo3_src-3.8.1/typo3/ext/wa_printctrl/pi1/class.tx_waprintctrl_pi1
.php on line 31

What shall I do o repair this.

Thanks,

Richard