Update Error …/vendor/tedivm/stash/src/Stash/Driver/FileSystem/NativeEncoder.php25

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Hi,

I was trying to update to 8.5.4 from 8.4.3 and got an error message:

Whoops \ Exception \ ErrorException (E_WARNING)
include(): Failed opening '//.../webdir/application/files/cache/expensive/0fea6a13c52b4d47/25368f24b045ca84/38a865804f8fdcb6/57cd99682e939275/2ddb27c5cdf0b672/745d4c64665be841/ce0ad140181c3bbe/3bb968ac7ca33a72.php' for inclusion (include_path='/.../webdir/updates/concrete5-8.5.4/concrete/vendor:.:/opt/remi/php71/root/usr/share/pear:/opt/remi/php71/root/usr/share/php:/usr/share/pear:/usr/share/php')

Can anyone explain how to deal with this problem? Thanks in advance
Lovic

Lovic