Meaning of EVIDENCE in English
BAD : There are no reliable evidences to suggest that the situation is improving.
GOOD : There is no reliable evidence to suggest that the situation is improving.
BAD : This true story provides an evidence of the power of advertising.
GOOD : This true story provides evidence of the power of advertising.
Evidence is an uncountable noun: 'Medical evidence suggests that men are more likely to have heart attacks than women.'
Longman Common Errors English vocabulary. Английский словарь распространенных ошибок Longman. 2012