sql.lib.php#613 count(): Parameter must be an array .. that implements Countable

[rytis]

EspoCRM: 5.5.6
PHP7.3
Debian 10

phpMyAdmin throws at me "Some errors have been detected on the server!" following the most basic queries, such as in the example given below. None of this occurred in Debian 9 from which I have just upgraded... help

Example:

SELECT * FROM `account`

returns

./libraries/sql.lib.php#2128: PMA_isRememberSortingOrder(array)
./libraries/sql.lib.php#2062: PMA_executeQueryAndGetQueryResponse(
array,
boolean true,
string 'espocrm_esof',
string 'account',
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
string '',
string './themes/pmahomme/img/',
NULL,
NULL,
NULL,
string 'SELECT * FROM `account`',
NULL,
NULL,
)
./sql.php#221: PMA_executeQueryAndSendQueryResponse(
array,
boolean true,
string 'espocrm_esof',
string 'account',
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
string '',
string './themes/pmahomme/img/',
NULL,
NULL,
NULL,
string 'SELECT * FROM `account`',
NULL,
NULL,
)