Banner Slider Admin Page Broken

[rgilchrist]

I have recently upgraded our Magento to 2.3.4.
Now when we go to the Admin Page (Content -> Manage Bannerslider), I get the error

Exception #0 (Zend_Db_Statement_Exception): SQLSTATE[42S22]: Column not found: 1054 Unknown column 'main_table.entity_id' in 'field list', query was: SELECT main_table.entity_id FROM magestore_bannerslider_slider AS main_table
Exception #1 (PDOException): SQLSTATE[42S22]: Column not found: 1054 Unknown column 'main_table.entity_id' in 'field list'

stack_trace.txt

[dickd]

Have same issue, thinking that it does not support 2.3 ++
Did you solve it ?

[kevinvuillemin]

Same issue for me.

I found a solution:

You have to change this files :
app/code/Magestore/Bannerslider/Block/Adminhtml/Banner/Grid.php :231
Replace
$this->setMassactionIdField('entity_id');
by
$this->setMassactionIdField('banner_id');

AND

app/code/Magestore/Bannerslider/Block/Adminhtml/Slider/Grid.php :192
Replace
$this->setMassactionIdField('entity_id');
by
$this->setMassactionIdField('slider_id');

[fluidum]

Thanks @kevinvuillemin

In my case ver. 2.3.5 had only app/code/Magestore/Bannerslider/Block/Adminhtml/Slider/Grid.php which contained entity_id that I replaced with slider_id. Trying directly to reproduce after changing it the error was fixed.

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Error appeared in var/log/system.log

Reproducing:
Banner Slider -> Manage Sliders (URL contains ..admin/bannerslideradmin/slider/index/..)