Impossible to access to PHPMyAdmin : failed to open c:phppear

Although it did works fine 2 weeks ago, since this morning, after launched Uwamp (in no install mode), if i try to access to PHPMyAdmin, i got this error message :

( ! ) Warning: Unknown: failed to open stream: No such file or directory in Unknown on line 0

( ! ) Fatal error: Unknown: Failed opening required ‘C:/Users/pierr/OneDrive – alienor.org/Documents/Perso/Sauvegarde/Programmes portables/UwAmp/UwAmp/phpapps/phpmyadmin/index.php’ (include_path=’.;C:phppear’) in Unknown on line 0

I stopped firewall
I tried to define include_path on php_uwamp.ini but there is no “pear” folder on Uwamp
i tried to swap from PHP 5.6.18 to PHP 7.0.3

I downloaded the latest version of uwamp
Nothing helped…

Is this a known issue ? What did i miss ?

Thanks for your help.